DANB CDA – ICE: Prevention of Disease Transmission — All Questions

Why should every dental patient be treated using standard precautions regardless of their medical history?

A patient’s medical history reveals they are positive for hepatitis B. How should this information affect the dental team’s infection control practices?

Which bloodborne pathogens are of greatest concern for occupational exposure in the dental office?

Which of the following is a common sign of an active oral herpes simplex virus (HSV) infection?

A patient presents for a routine cleaning with visible cold sore lesions on their lower lip. What is the appropriate course of action?

According to CDC guidelines, when should dental healthcare personnel perform hand hygiene?

What is the minimum recommended handwashing time when using soap and water in a dental setting?

A dental assistant removes contaminated gloves after a procedure and notices their hands are visibly soiled with blood. Which hand hygiene method is most appropriate?

Which of the following is included in standard precautions for dental healthcare settings?

During a restorative procedure, the dental assistant’s glove tears. What is the correct response?

Which route of disease transmission involves the spread of pathogens through respiratory droplets or aerosols?

During an aerosol-generating dental procedure, what additional precaution beyond standard PPE may be recommended to reduce airborne pathogen exposure?

What is the primary mode of transmission for bloodborne pathogens in the dental setting?

Which type of transmission-based precaution requires the use of an N95 respirator?

What is the primary purpose of fit testing for an N95 respirator?

Which precaution category requires placing a patient in a negative pressure room?

A dental assistant is preparing to assist with an ultrasonic scaling procedure. Which additional precaution is recommended because of the aerosol generated by this device?

Which dental procedure is classified as an aerosol-generating procedure (AGP)?

During a pandemic, the dental office implements enhanced screening protocols. A patient calls reporting a fever and cough and is scheduled for a routine prophylaxis. What is the most appropriate action?

What type of air filtration system is used to remove airborne pathogens in dental settings with enhanced infection control requirements?

A dental assistant is preparing the operatory for a patient who has been identified as requiring droplet precautions. Which PPE is appropriate for this situation?

A dental office is developing its infection control protocol for aerosol-generating procedures. The office manager asks the dental assistant which combination of controls would be most effective at reducing aerosol exposure. Which response is correct?

Contact precautions are implemented for patients with infections spread primarily by which route?

The dental office has implemented a pre-appointment triage protocol. A patient responds “yes” to having been in close contact with someone diagnosed with an active respiratory infection. What should the dental assistant do next?

A dental office is evaluating whether to use an air polisher on a patient who has reported a recent respiratory illness that has since resolved. The dental assistant reviews the infection control manual. Which factor is most important in making this decision?

In addition to standard precautions, transmission-based precautions are categorized into which three types?

A dental assistant is setting up for a procedure that will use a high-speed handpiece. The patient has no known infectious disease, but the office follows enhanced aerosol precautions as standard practice. Which additional measure should the dental assistant implement?

A dental office is reopening after a temporary closure during a respiratory pandemic. The infection control coordinator asks the dental assistant to help update the written exposure control plan. Which element should be added specifically for pandemic preparedness?

When should a dental team member perform a user seal check on an N95 respirator?

A patient presents for emergency dental treatment with an active case of chickenpox (varicella). The dental office does not have a negative pressure room. What is the most appropriate course of action?

What is the minimum alcohol concentration required in alcohol-based hand rubs used in dental healthcare settings?

A dental assistant needs to perform hand hygiene before assisting with a surgical extraction. Which hand hygiene product is most appropriate for this presurgical situation?

When is plain (non-antimicrobial) soap considered acceptable for routine handwashing in a dental office?

Which clinical sign would most strongly suggest that a patient presenting for dental treatment has an active oral infection?

What is herpetic whitlow?

A dental assistant notices that a patient has white, curd-like patches on the tongue and buccal mucosa that can be wiped off to reveal a red, raw surface beneath. Which condition do these findings most likely indicate?

Angular cheilitis is characterized by which clinical finding?

A parent brings a 4-year-old child for a dental appointment. The child has small ulcers on the tongue and inside the cheeks, along with a rash of small blisters on the palms of the hands and soles of the feet. The dental assistant should recognize this presentation as consistent with which condition?

A patient arrives for a scheduled dental appointment with a temperature of 101.2 degrees Fahrenheit, reports feeling fatigued, and has visible vesicular lesions on the face. The dental assistant takes the patient’s vital signs and reviews the medical history. What is the most appropriate next step?

Which of the following is a systemic sign of infection that a dental assistant might identify when taking a patient’s vital signs?

During an intraoral examination, the dentist asks the dental assistant to note findings in the patient’s chart. The assistant observes raised, white, slightly elevated patches on the buccal mucosa that do not wipe off. The dentist identifies these as leukoplakia. Why is this finding significant from an infection control standpoint?

Measles is of concern in a dental office because the virus can be transmitted through which route?

A dental assistant reviews a patient’s updated medical history and notes the patient reports a recent diagnosis of oral candidiasis that has been recurring. The patient has no history of denture use or recent antibiotic therapy. Which consideration should the dental assistant bring to the dentist’s attention?

Why is it important for the dental assistant to review a patient’s medical history for infection risk before treatment?

Which disease is caused by a prion and requires special instrument handling considerations in dentistry?

A patient’s medical history indicates they are immunocompromised due to chemotherapy. How should the dental team modify their approach to infection control for this patient?

Which route of transmission is the primary concern for tuberculosis (TB) in a dental setting?

A patient reports on their medical history form that they are a carrier of MRSA. What does this mean for the dental team’s infection control approach?

What is the difference between an acute infection and a chronic infection?

A dental patient presents with an active herpes simplex lesion on their lip. The patient is scheduled for a routine prophylaxis. What is the best course of action?

Why are dental healthcare workers recommended to receive the hepatitis B vaccination?

A patient’s medical history indicates they are HIV-positive with a high viral load and a low CD4 count. The patient requires an urgent extraction due to a dental abscess. How should the dental team proceed?

What does it mean when a patient is described as a ‘carrier’ of an infectious disease?

A patient’s medical history form reveals they have a heart valve replacement and their cardiologist recommends antibiotic prophylaxis before dental procedures. What is the dental assistant’s role in this situation?

A dental office has a patient who reports a history of active tuberculosis that was treated and resolved two years ago. The patient has a current negative chest X-ray. Which of the following best describes the infection control approach?

Which of the following best describes the concept of ‘viral load’ as it relates to infection risk?

During a medical history update, a patient discloses that they recently tested positive for hepatitis C. The patient is scheduled for a crown preparation. What is the most appropriate response by the dental team?

A dental assistant is reviewing updated medical histories for the day’s patients. One patient reports a recent organ transplant and is taking immunosuppressive medications. Another patient reports a resolved case of chickenpox from childhood. Which patient presents the greater infection control concern, and why?

Standard precautions in the dental office are based on the principle that:

Which of the following is classified as other potentially infectious material (OPIM) under OSHA’s Bloodborne Pathogens Standard?

During a dental procedure, the dental assistant notices aerosol being generated by the high-speed handpiece. Which PPE combination provides adequate protection against aerosol exposure?

What type of protective eyewear is recommended for dental healthcare personnel during patient treatment?

A patient in the reception area is coughing frequently and not covering their mouth. According to respiratory hygiene and cough etiquette guidelines, what should the dental team do?

When should a face shield be worn instead of, or in addition to, protective eyewear during a dental procedure?

Which type of protective clothing should a dental assistant wear during patient treatment to prevent contamination of street clothes?

A dental assistant is preparing to administer a local anesthetic carpule to the dentist during a procedure. The assistant notices that the carpule has already been loaded into a syringe that was used for a previous patient. What is the correct action?

A dental office is reviewing its infection control protocol and wants to ensure compliance with the safe injection practices component of standard precautions. Which practice represents a violation of the “one needle, one syringe, one patient” principle?

Which of the following items in the dental office is considered single use and disposable?

A dental assistant is assisting during a procedure that generates significant aerosol. The assistant’s protective eyewear becomes fogged, making it difficult to see. What is the correct course of action?

A dental office discovers that a staff member has been rinsing and reusing disposable prophy angles between patients after wiping them with a surface disinfectant. Why does this practice violate standard precautions?

During operatory cleanup, a dental assistant notices splatter on the outside surface of her protective eyewear. What is the proper procedure for handling the contaminated eyewear?

When should alcohol-based hand sanitizer NOT be used in place of handwashing with soap and water?

A dental assistant is about to assist with an implant placement surgery. Which hand hygiene method is most appropriate before gloving for this procedure?

What is the recommended contact time when using an alcohol-based hand rub in the dental office?

A dental assistant removes gloves after a restorative procedure and does not notice any tears or visible contamination on the hands. What is the appropriate next step?

Why are artificial nails prohibited for dental healthcare personnel who have direct patient contact?

What is the CDC recommendation regarding fingernail length for dental healthcare personnel?

A dental assistant notices that a coworker routinely wears rings while providing chairside patient care. What is the infection control concern with wearing hand jewelry during patient treatment?

A dental assistant has developed contact dermatitis on both hands from frequent handwashing. The skin is dry, cracked, and irritated but not actively bleeding. What is the most appropriate course of action?

Which type of hand cream or lotion is recommended for dental healthcare workers to help prevent skin breakdown?

A dental assistant is preparing to assist the dentist with a routine composite restoration. Which hand hygiene step should occur immediately before donning examination gloves?

According to the WHO hand hygiene framework, which of the following is one of the five moments for hand hygiene?

A dental office is evaluating its hand hygiene compliance. Staff members report that the wall-mounted soap dispensers are inconveniently located, and alcohol-based hand rub dispensers are only available at the front desk. Which improvement would most effectively increase hand hygiene compliance?

A dental assistant is about to eat lunch in the break room after completing morning patient care. The assistant has already removed PPE and gloves. What hand hygiene step is required?

Which clinical presentation represents common signs of infection in the oral cavity?

A patient reports fever, body aches, and a productive cough that started three days ago. The dental assistant should recognize these symptoms as consistent with which type of condition?

Which characteristic finding is associated with mumps?

During the flu season, a patient presents with sudden onset of high fever, severe muscle aches, and fatigue. These findings are most consistent with influenza. What should the dental assistant do?

Which infection control measure became widely adopted in dental offices during the COVID-19 pandemic?

A dental assistant reviews a patient’s medical history and notes a recent diagnosis of active tuberculosis. Which type of disease classification applies to this condition?

A dental assistant suspects that a patient may have a communicable disease based on clinical findings. What is the appropriate role of the dental assistant regarding public health notification?

Which respiratory infection is transmitted via airborne droplet nuclei and requires N95 respirator protection for dental personnel?

According to standard infection control guidelines, when should a dental assistant wash their hands during the course of a patient appointment?

A dental assistant removes their examination gloves after completing a procedure and notices no visible soil on their hands. What is the appropriate next step?

Why is jewelry removal recommended before performing hand hygiene in a dental setting?

A dental assistant has developed cracked, irritated skin on both hands from frequent handwashing. How does this hand dermatitis affect infection control?

The WHO identifies specific moments when hand hygiene is essential in healthcare settings. Which of the following correctly applies the WHO hand hygiene moments to dental assisting practice?

A patient’s medical history indicates a diagnosis of AIDS. What is the primary reason the dental assistant must be aware of this information?

A patient who previously worked in a neurological research laboratory reports potential exposure to prion disease. What characteristic of prions makes them a unique concern for dental instrument processing?

While reviewing a patient’s medical history, the dental assistant notes that the patient is currently receiving chemotherapy. Why is the patient’s immune status a concern for dental treatment planning?

Why is it important for the dental assistant to ask about a patient’s vaccination status during the medical history review?

During a pandemic involving a highly transmissible respiratory pathogen, which additional infection control measure should a dental office implement beyond standard precautions?

Which type of eye protection is recommended for dental healthcare personnel during procedures that generate splash or spatter?

During a respiratory illness pandemic, a dental office implements enhanced infection control measures. Which modification reflects an appropriate pandemic protocol for dental settings?

A patient indicates on the medical history form that they are a carrier of hepatitis C. How should this information affect the infection control procedures used during their dental appointment?

A dental assistant notices a cluster of small, fluid-filled vesicles on a patient’s lower lip. What condition should the assistant suspect?

When should a dental assistant perform hand hygiene during patient care?

Which body fluids are considered potentially infectious under standard precautions in a dental setting?

Which type of personal respirator is required for dental procedures involving aerosol generation when a patient is suspected of having an airborne transmissible disease?

Why are artificial fingernails and long natural nails prohibited for dental healthcare workers who provide direct patient care?

A dental assistant accidentally splashes disinfectant into their eye while cleaning the operatory. What is the immediate first response?

Which bloodborne pathogen poses the greatest occupational transmission risk to dental healthcare workers following a needlestick injury?

During an oral examination, the dentist identifies white patches on the patient’s tongue and palate that can be wiped off, leaving a red, raw surface beneath. What condition does this presentation suggest?

A patient reports on the medical history form that they tested positive for latent tuberculosis (TB) but are not currently symptomatic. Should the dental team modify their infection control procedures?

Standard precautions in dentistry require that infection control measures be applied to which patients?

During a restorative procedure, a dental assistant notices that blood has splattered onto the countertop surface. According to standard precautions, what should the assistant do after the procedure?