Dental Hygiene (DHYG) Concepts Practice Test

These questions are part of the practice quiz. Start practicing

• Which of the following is NOT a recognized route of entry for infections?
• In which group of patients is Prolia primarily used?
• What instrument is used specifically to assess furcations?
• What does adaptation refer to in dental hygiene?
• Which medication should a patient bring to their dental appointment if they have angina?
• Transient bacteria are best described as:
• At what point is the gingival recession measured from?
• What repetitive action can lead to ulnar nerve entrapment?
• What is the clinical manifestation associated with Varicella-Zoster Virus?
• What information is crucial to identify when asking about current medications?
• What is the normal adult respiration rate?
• What type of drug is lidocaine classified as?
• Which type of hepatitis is primarily waterborne and lacks a chronic infection risk?
• What is meant by direct transmission in the context of infection control?
• Which color is associated with green stain?
• What is a primary application of topical anesthetics?
• What is a recommended feature of a toothbrush for effective cleaning?
• Which outcome is associated with proper sharpening of dental instruments?
• What complication is particularly concerning in patients on bisphosphonates undergoing dental procedures?
• What is the primary dental use of penicillin?
• For which condition is antibiotic prophylaxis NOT typically suggested?
• Which organization is not primarily focused on infection control in dental practices?
• What effect do antihistamines have on dental treatment?
• What is the typical mode of transmission for Hepatitis E (HEV)?
• Which of the following is a factor affecting pocket depth measurements?
• What type of patient information is relevant when identifying risk for medical emergencies?
• What condition is characterized by numbness, pain, and tingling due to arm positioning?
• What do internal indicators monitor during the sterilization process?
• What is the primary use of bisphosphonates?
• How long does the CDC recommend washing hands during a routine handwash?
• Which cell type does HIV primarily invade?
• What is a risk associated with washing gloves?
• Why do we ask patients about diabetes during dental intake?
• What is a characteristic of tuberculosis disease in terms of contagion?
• Which medication type may be used for pain relief and reduces inflammation?
• What distinguishes a functional shank in dental instruments?
• What should be assessed in patients with respiratory diseases before dental procedures?
• Which condition is associated with Hepatitis D Virus (HDV)?
• Which type of stain originates from sources outside the tooth?
• Which regulatory agency is responsible for ensuring the safety and effectiveness of drugs and medical devices?
• What condition do nitroglycerin medications primarily treat?
• What is the best course of action for a patient with active tuberculosis before dental procedures?
• In health history, what does a symptom-oriented format specifically focus on?
• What is the primary reason to avoid using very thin tipped instruments during calculus removal?
• What defines Type 1 diabetes?
• In which scenario would the root debridement stroke be utilized?
• What does hypertension signify?
• Which of the following is true regarding HbA1c levels higher than 7?
• Which personal protective equipment is essential for dental hygiene practice?
• What does 'shelf life' of a disinfectant refer to?
• What is the average normal body temperature?
• What does OSHA stand for?
• What is a significant dental treatment effect associated with bisphosphonates?
• What is the primary purpose of obtaining a health history in dental hygiene?
• What does "veracity" mean in professional dental practice?
• What is an important consideration when treating infectious diseases?
• What is the primary characteristic of hepatitis?
• What does the acronym ADPIED stand for in the dental hygiene process of care?
• Which procedure is typically avoided to maintain effective ultrasonic cleaning?
• What is the filtration efficiency of a mask categorized as Level 3 ASTM?
• Why are good ergonomics important for dental hygiene practice?
• What type of patient reactions should be assessed regarding allergies?
• What is one of the vital signs that should be recorded during a patient examination?
• What is one of the primary sites affected by TB disease?
• The pulse reflects the number of which of the following?
• What effect does poor ergonomic positioning have on a clinician's productivity?
• Which of the following is considered the strongest form of scientific evidence?
• Why is it important to ask patients about allergies before treatment?
• What are the key elements established in the planning phase of ADPIED?
• What distinguishes a Class 4 furcation from Class 3 furcation?
• Where do the source minerals for calculus mineralization primarily come from?
• What does indirect transmission refer to?
• What would you typically use a rigid curette for?
• What is meant by 'reuse life' of a disinfectant?
• Diastolic pressure is described as:
• Which virus is known for causing mononucleosis?
• In terms of dental hygiene, Class 3 mobility refers to what?
• What does the term "materia alba" refer to in dental hygiene?
• What is the primary appearance of calculus?
• What is a tool used for managing saliva during dental procedures?
• What potential effect should be monitored for patients using antibiotics like penicillin?
• What type of instruments contacts mucous membranes without penetrating body tissues?
• How fast do mineralization foci develop in dental calculus?
• Which organism primarily causes tuberculosis (TB)?
• What is the purpose of external indicators in sterilization processes?
• What should be done for a patient with joint implants prior to dental treatment?
• What is cortisone metabolized into to exert its anti-inflammatory effects?
• Which symptom is commonly associated with tendinitis?
• Which of the following is a blood disorder that should be noted during patient intake?
• Which surfaces can be accessed from the 10 O' clock position?
• Which of the following can increase respiration?
• What is a critical component of the evaluation phase in the ADPIED process?
• What type of preparations does chemotherapy involve?
• Which type of stain is relating to the use of betel leaves?
• What is a fungal manifestation commonly seen in AIDS?
• Which of the following is included in soft deposits?
• What type of hypersensitivity is associated with latex allergies?
• What level of mobility is classified as Class 1?
• What are common oral side effects associated with antidepressants?
• During surgical procedures, what is the preferred type of fluid to use?
• What is an example of a primary study?
• Which antidepressant is mentioned as a common example?
• What does a body temperature greater than 99.5 F indicate?
• What condition is associated with the use of Fen-Phen and Redux?
• What does the term 'percutaneous' refer to?
• What does the term "beneficence" refer to in the context of dental hygiene?
• Why is the sharpness of dental instruments important?
• What temperature is classified as hypothermia?
• Which medication is used in LTBI treatment in a 3-month regimen with Rifapentine?
• Which of the following refers to a strong pulse quality?
• At what diastolic pressure is Stage 2 hypertension diagnosed?
• Which type of shank is best for detecting subgingival calculus?
• What defines an AIDS cell count?
• What oral side effect is associated with the use of Dilantin?
• Which type of stain is commonly associated with poor oral hygiene during childhood?
• What type of stain occurs within the structure of the tooth?
• Which of the following conditions may be treated with antidepressants?
• What is a characteristic symptom of osteonecrosis of the jaw (ONJ)?
• What color is represented for oxygen in safety protocols?
• What is BCG in relation to tuberculosis?
• Which stroke is commonly used to locate calculus deposits?
• Which type of data is considered subjective during the assessment phase of ADPIED?
• Which medication is commonly used as an anti-platelet medication?
• What is the primary purpose of the assessment stroke in dental hygiene?
• Which cancer is associated with AIDS, known for its appearance as dark lesions on the skin?
• What is a common periodontal condition that can manifest in individuals with AIDS?
• What portion of the functional shank is nearest to the working-end?
• What should be confirmed with a patient's physician when considering treatment with anticoagulants?
• What is the threshold for normal diastolic blood pressure?
• Why is it important to know if a patient is allergic to any medications?
• Which of the following can increase pulse rate?
• What is the purpose of the implementation phase in the ADPIED process?
• Which of the following is NOT a required component of drug documentation?
• Which emotional state can elevate blood pressure?
• Symptoms of ulnar nerve entrapment include which of the following?
• What is a characteristic of moderately flexible shanks?
• What type of evidence is referred to as the "platinum standard" in scientific research?
• Which type of herpes simplex virus is primarily associated with cold sores?
• What is the classification of blood pressure with a systolic reading of 145?
• Which instrument type is primarily used for detection rather than removal of calculus?
• What is a reason for collecting the physician's information from a patient?
• Which of the following is a potential adverse effect of contraceptive medications related to dental treatment?
• What is the main action of barbiturates?
• What indicates clinical attachment loss in a dental patient?
• Which regulatory agency aims to protect workers from hazards in the workplace?
• What is the purpose of gathering a patient’s date of birth during health history collection?
• What is a common dosage of clopidogrel as an anti-platelet medication?
• What is the primary issue associated with Hepatitis B (HBV)?
• What is the pH range of dental biofilm before eating?
• Which type of disinfectant is not considered tuberculocidal?
• What should be done before and after glove use in dental hygiene?
• Systolic pressure represents:
• What is the primary purpose of antibiotic prophylaxis?
• What does the term immune suppression cell count generally refer to in relation to HIV?
• What should be observed in respiration?
• How is tuberculosis primarily transmitted?
• What is the function of the acquired pellicle in dental hygiene?
• What is the normal pulse rate for children?
• At what angulation is calculus removal ideally performed?
• What is a common application of Bacillus atrophaeus in dental hygiene?
• What should be considered when measuring the width of attached gingiva?
• In the diagnosis of Stage 1 hypertension, what is the range for diastolic pressure?
• What condition can result from bad ergonomics in dental hygiene practice?
• In which condition does the proportion of cocci decrease in biofilm?
• What is the primary use of penicillin in dental practice?
• Which of the following drugs is associated with weight loss but has been discontinued?
• What color variations are commonly associated with pulpless teeth?
• What does 'use life' refer to regarding germicidal solutions?
• Which of the following best describes biofilm?
• Patients receiving treatment for which condition might require special dental considerations due to bisphosphonate use?
• If systolic and diastolic pressures fall into different categories, how is the blood pressure classified?
• Which condition is linked to independently extending fingers?
• When positioned at 8 O' clock, which surfaces can the clinician access?
• Which condition could affect the accuracy of pocket readings during a dental examination?
• Which diabetes-related issue must be monitored when a patient is using insulin?
• What is an ethical dilemma?
• What does the term "parental" refer to in a medical context?
• Which type of transmission typically requires droplets from the respiratory tract?
• Which part of the attachment apparatus is responsible for connecting the tooth to the surrounding bone?
• Pocket readings can vary due to which of the following factors?
• Which of the following medications is suggested if a patient is allergic to penicillin?
• Which of the following is an example of an anticoagulant medication?
• Which method requires the longest time for sterilization?
• Which of the following statements about the CDC is true?
• What should be done with nitroglycerin medications before a dental appointment?
• What is the defining characteristic of tetracycline stains?
• What do standard precautions primarily focus on?
• Which medication is an example of a barbiturate?
• Which type of study involves analyzing data from multiple studies?
• What is a key advantage of using chemical vapor for sterilization?
• Which of the following steps should NOT be performed after a tip breaks?
• Where should the blood pressure cuff be placed for an accurate reading?
• For effective gripping, what feature is essential in handle design?
• What is a characteristic of yellow stain?
• To maintain good ergonomics, where should the clinician's head and neck ideally be located?
• What should be done immediately after retrieving a broken instrumental tip?
• What is the relationship between latent TB infection (LTBI) and TB disease?
• What type of organization is OSAP?
• What physiological state could increase heart rates due to strong emotions?
• What is the ideal position for a clinician's back while seated?
• Why is it important to identify vitamins or supplements a patient is taking?
• Which of the following is NOT typically included in a personal health history?
• What could cause deterioration of gloves during dental procedures?
• What is the main function of macrophages in the TB infection process?
• Which drugs are commonly recognized as calcium channel blockers?
• What factor can decrease pulse rate?
• What is the primary advantage of maintaining sharp dental instruments?
• What defines work practice control in dental hygiene?
• What should be monitored in patients receiving cortisone treatment?
• Which stain is less frequently observed and can be caused by chromogenic bacteria?
• What is considered a normal systolic blood pressure?
• Which type of bacteria would likely be found on your hands after touching various surfaces?
• What is the primary function of flexible shanks?
• What does a normal pulse indicate?
• Which type of shank is necessary for accessing posterior teeth?
• Which condition may lead to symptoms such as tingling and numbness in the hand?
• When is the ideal time to sharpen dental instruments?
• What is the minimum sterilization temperature and time for dry heat ovens?
• What treatment is associated with extrinsic staining known to affect teeth?
• When should oral self-care be taught to patients?
• What is the range for normal adult CD4+ cell counts?
• Koplik's spots are associated with which disease?
• Which of the following is NOT a goal of sharpening dental instruments?
• Which patient condition is indicated by a significant cough and difficulty breathing?
• What is an important distinction to remember about HIV and AIDS?
• Which statement about Hepatitis A (HAV) is correct?
• What does hyperthermia refer to?
• What does the HbA1c test measure?
• What is pulmonary arterial hypertension?
• Who is recognized as the father of dental hygiene?
• Biological monitoring indicates the effectiveness of a sterilization cycle by:
• Fasting primarily affects blood pressure by:
• What surface orientation is best accessed from the 9 O' clock position?
• What is the outer layer of a calculus deposit primarily composed of?
• Which type of scientific study is referred to as the "diamond standard"?
• Which practice is part of standard hygiene protocol for dental procedures?
• What is considered a normal adult pulse rate?
• What is one of the causes of Carpal Tunnel Syndrome related to ergonomics?
• Which type of sharpening stone is lubricated with oil?
• What is the purpose of using a "foil" test in ultrasonic cleaning?
• What does dental calculus consist of?
• Why is it necessary to consult a physician for patients on anticoagulation medications?
• Which stain is described as being composed of gram-positive rods?
• What is a common respiratory disease that may affect dental treatment considerations?
• What are the two parts of the periodontium?
• Which of the following describes Class 3 furcation?
• Which organization focuses on safety, asepsis, and prevention practices in dentistry?
• What is a common side effect of blood pressure medications related to posture?
• What do extended lower shanks reach on the root surface?
• If the broken tip cannot be found after searching, what should be done next?
• Which of the following is NOT a step involved in the manual scrubbing process?
• Which of these describes the rhythm of respiration?
• Which of the following is a sign of a dull dental instrument?
• Which of the following is considered a primary microorganism in caries formation?
• What is the systolic blood pressure range classified as elevated?
• At what HbA1c level can dental treatment proceed without physician consultation?
• Which treatment is commonly used for latent TB infection (LTBI)?
• Where do orange and red stains typically appear?
• Rigid shanks are indicated for what purpose?
• What is the significance of the HBV Titer test?
• What physical phenomenon creates a pulse?
• What is the first step in measuring attached gingiva?
• What happens to candidiasis when tested with gauze?
• What characterizes a Class 1 furcation involvement?
• What is a potential risk associated with the use of aspirin?
• What does the term 'materia alba' refer to in dental hygiene?
• What is true about latent TB infection (LTBI)?
• What is the primary indicator that an instrument needs sharpening?
• What happens during shock in relation to blood pressure?
• What is the primary purpose of wearing utility gloves during manual scrubbing?
• Which cardiovascular condition requires antibiotic prophylaxis during dental treatment?
• What is a definition of droplet transmission?
• What is a disadvantage of conducting a health history interview?
• What is a common consideration when treating patients on antihypertensive medications?
• What HbA1c level indicates that dental treatments can proceed without precaution?
• What shank type is used for the removal of very tenacious calculus?
• What symptom can be encountered in cases of pronator syndrome?
• How long can TB disease treatment last?
• How does calculus typically form on a tooth's surface?
• What is a key feature of Hepatitis C Virus (HCV)?
• Which of the following is an example of an anti-inflammatory drug?
• What is a potential disadvantage of using chemical vapor for sterilization?
• What symptoms may a person experience during Orthostatic hypotension?
• What is one primary use of contraceptive medications?
• Which of the following is a symptom of measles?
• How is probing depth measured?
• Which of the following conditions can be treated with bisphosphonates?
• What are resident bacteria?
• What unique feature does Hepatitis E Virus (HEV) have regarding chronicity?
• How long does it typically take for gingivitis to develop?
• Which type of drug is a sulfa drug?
• Which examination methods are applied to assess subgingival calculus?
• What is the causative agent of Tuberculosis (TB)?
• Which job responsibility is considered high risk due to potential exposure to bodily fluids?
• What would NOT commonly elevate pulse rate?
• What is the term for the depression below the contact area of the teeth?
• At what angle should a dental instrument be sharpened to achieve optimal results?
• What is the term for abnormally low blood pressure?
• What happens to blood pressure when it is measured inaccurately?
• What color is commonly associated with nitrogen in industry?
• During the calculus removal stroke, what type of pressure is applied?
• What effect does a sharp instrument have on the quality of debridement?
• What is the condition known as when a person has CD4 counts less than 200 cells/mm?
• What preventive measure is associated with standard precautions?
• What is the function of a stainless steel diamond card during instrument maintenance?
• What factors influence the development of infections in patients?
• Which type of heart condition requires antibiotic prophylaxis?
• What are the key features of a proper lab coat for dental hygiene?
• Which factor does NOT affect blood pressure?
• Which of the following is categorized as a gold standard of scientific evidence?
• Where is black line stain more commonly found?
• Which symptom is NOT commonly associated with hepatitis?
• What is the normal respiration rate for children?
• How is Prolia administered?
• What type of debris does materia alba consist of?
• Which type of stain occurs directly on the surface of the tooth?
• Which test is commonly used for screening tuberculosis in dental hygienists?
• What methods are used to examine supragingival calculus?
• How can one identify that a dental instrument is becoming dull during use?
• Which of the following is known to decrease blood pressure?
• What internal parameters must be monitored to ensure successful sterilization?
• What dental concern is associated with the use of Prolia?
• Which of the following statements is true regarding Hepatitis B Virus (HBV)?
• What is the recommended practice regarding the saliva ejector?
• What is the primary use of codeine in dentistry?
• What should be done to minimize gingival overgrowth in patients taking Dilantin?
• What is the seating zone at 12 O' clock considered to be?
• What is one of the key actions of insulin?
• What is a key factor in informed consent prior to implementation in the ADPIED process?
• What characterizes a ceramic stone in terms of lubrication?
• What is a common side effect of calcium channel blockers like nifedipine?
• What is the main role of the Food and Drug Administration?
• Why is it important to ask patients if they are currently under the care of a physician?
• Which of the following is NOT a recommended immunization for dental hygienists?
• In periodontitis, which pathogen is known for its severity?
• What is the key disadvantage of manual scrubbing?
• What can be observed externally during a dental examination of calculus?
• What is the clinical significance of measuring gingival recession?
• What function does the probe serve in a dental examination?
• What describes surgical antisepsis?
• What is the main function of anticoagulant medications?
• Which stain has a definitive association with the use of marijuana?
• What is the recommended action if an instrument becomes caught during use?
• What is the role of local anesthetics such as mepivacaine?
• What blood pressure reading indicates a crisis situation?
• Which of the following is a pro of using a questionnaire for health history collection?
• What is the primary purpose of a long lab coat in dental hygiene?
• What is recommended as the first step in oral self-care?
• Which type of shank offers negligible tactile sensation?
• What describes evidence-based practice in dental hygiene?
• What is digitalis primarily used to treat?
• What is the recommended angulation for insertion of dental instruments?
• For accurate blood pressure assessment, how should the patient be positioned?
• What should be done before and after patient treatment in relation to dental unit waterlines?
• Which of the following is a primary medication for treating TB disease?
• What is the composition of an India stone?
• What principle does nonmaleficence emphasize in dental hygiene?
• What does CAL stand for in dental assessments?
• Which microorganism is commonly used to test steam autoclaves?
• Why should amoxicillin be avoided for patients allergic to penicillin?
• What type of instruments come in contact with intact skin only?
• What should be the first action taken if a dental instrument tip breaks during a procedure?
• Which agency does not have the authority to make laws but provides recommendations used by other agencies?
• What is the primary characteristic of emphysema?
• Which bisphosphonate is administered intravenously?
• Which cleaning method is used to avoid overload during ultrasonic cleaning?
• What is the primary method of HIV transmission?
• What is one reason to dry instruments after scrubbing them?
• Which cleaning method involves the automatic cleaning, rinsing, and drying of instruments?
• What is the main purpose of an antiseptic handwash?
• What is the primary composition of the acquired pellicle?
• Which stroke is specifically used to lift calculus deposits off the tooth?
• What does the Code of Ethics outline?
• Which aspect of general physical health can influence infection development?
• Which of the following is an example of an antihistamine?
• Which part of the working end is always in contact with the tooth surface?
• What is Orthostatic (postural) hypotension?
• What is a common result of Carpal Tunnel Syndrome?
• What symptom can indicate tuberculosis infection?
• What is the primary mechanism of calculus attachment to the tooth surface?
• What appearance does a black line stain typically have?
• What characteristic defines the extracellular layer of biofilm?
• What is a primary function of Prolia (Denosumab)?
• What is primarily assessed during the objective data collection in the ADPIED process?
• Which type of instrument is classified as critical in dental hygiene?
• What can cause an increase in blood pressure?
• Which of the following is not a factor influencing infection development?
• Class 2 mobility indicates what degree of movement?
• What kind of stain may become intrinsic over time?
• What is the recommended dosage of amoxicillin before dental treatment?
• Who was the first dental hygienist?
• Which of the following statements about blood pressure is incorrect?
• What factor does NOT lead to decreased respiration?
• What should be considered a standard precaution when treating patients?
• In the context of dental hygiene, what does it mean to treat every patient as potentially infectious?
• What symptom is typically associated with extensor wad strain?
• What is referred to as bradycardia?
• Which method should NOT be used to take a pulse?
• What is a common side effect associated with the use of certain vitamins and supplements?
• When dealing with cancer patients, what is a crucial step in dental care?
• How should curets be maintained for effective use on heavy deposits?
• What occurs to the pH of biofilm after consuming sugar?
• What condition does Dilantin (Phenytoin) primarily manage?
• What should be checked regarding nitroglycerin medications prior to use?
• Which step is NOT a part of proper ultrasonic cleaning?
• How is Hepatitis A Virus (HAV) typically transmitted?
• How does a disease-oriented health history format differ from others?
• What is a common effect of hypotension?
• An alcohol-based hand rub primarily functions to:
• When might an ethical dilemma be encountered?
• As dental biofilm ages, which type of bacteria increases?
• Which of the following can be a result of chronic use of antihistamines?
• What is described as mucogingival involvement?
• Which viral manifestation is associated with AIDS?
• Which of the following is NOT a vital sign?
• What is a con associated with the use of questionnaires in health history?
• What do Universal Precautions specifically target?
• During the diagnosis phase of ADPIED, what is a primary focus?
• What is a chronic infectious disease caused by HIV?
• Which handle design option is noted to provide a lighter instrument?
• What is a common reason for consulting with a physician regarding medications?
• Which of the following best describes the diagnosing step in the ADPIED process?
• Blood pressure is defined as:
• The pulse in relation to blood pressure is defined as:
• Which of the following disinfectants is registered with the US EPA?
• Where should a clinician's feet be positioned when seated?
• When working on the maxilla, how should the patient's chin be positioned?
• What should a clinician aim for regarding thigh position while seated?
• What is a primary cause of tenosynovitis?
• What does the presence of "burnished calculus" indicate about an instrument's sharpness?
• How is pulse rate typically calculated?
• Which of the following immunizations helps protect against hepatitis B?
• What action should a dental professional take before treating a patient with an infectious disease?
• Which medication is a bone-modifying agent that increases bone density?
• Which temperature range represents normal body temperature?
• Which characteristic is essential for an ideal disinfectant?
• What does the term "precleaning procedures" refer to in dental hygiene?
• What condition is aspirin NOT typically used for?
• In the case of Type 2 diabetes, what is the status of insulin levels?
• What is the required temperature and time for steam sterilization using gravity displacement?
• How does silver amalgam contribute to endogenous intrinsic staining?
• What is NOT considered a route of entry for pathogens?
• What indicates the correct working end of an instrument?
• Which stroke is characterized by a lighter, shaving motion for cleaning?
• What is the primary focus of the Environmental Protection Agency?
• What is NOT a property of an ideal disinfectant?
• What is the color range of tobacco stains?
• What is the definition of sterilization?
• What does documentation in the ADPIED process refer to?
• Which agency is known for making infection control recommendations in dentistry?
• Which virus causes HIV?
• What handle design characteristic is considered optimal for comfort?
• Which agency is primarily concerned with environmental health and safety?
• Which instruction is crucial for patients with latex hypersensitivity?
• Why is it important to change a mask if it becomes moist?
• What characterizes ethical issues in dental hygiene?
• Which of the following is considered a cause of endogenous intrinsic stains?
• What type of medications should dental hygienists inquire about to evaluate drug interactions?
• What does engineering control refer to in terms of safety?
• Which cleaning method is effective in managing bacteria in dental equipment?
• How should dental unit waterlines be managed?
• In Class 2 furcation involvement, how far does the probe enter?
• Which of the following factors is essential for the development of dental caries?
• What happens to the bacteria in biofilm as it matures over time?
• What does tachycardia indicate?
• In the evaluation phase of dental hygiene, what can lead to changes in the care plan?
• What is a common name for measles?
• What are Korotkoff sounds?
• What typical symptom is associated with tenosynovitis?
• What could indicate an abnormal respiratory sound?
• During a health history assessment, asking a patient about their pronouns serves what purpose?
• What condition is associated with Petechiae linked to EBV infection?
• What do antihistamines provide relief from?