10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
The DICO-C exam has 125 questions and runs 2 hours 30 minutes.
These 10 free DICO-C questions are organized by exam domain, so you can see how each part of the Certified Designated Infection Control Officer blueprint is tested. Reveal the answer and explanation under each question.
An agency needs the federal workplace standard that specifically requires a written exposure control plan, exposure determination, hepatitis B vaccination offer, and bloodborne post-exposure follow-up. Which standard directly addresses those duties?
Correct answer: A - OSHA 29 CFR 1910.1030, Bloodborne Pathogens.
An agency adds a vascular-access procedure, but its exposure determination has not been updated. How should the DICO assess the new task under the OSHA Bloodborne Pathogens Standard?
Correct answer: B - Identify reasonably anticipated blood or OPIM contact from the task without crediting PPE use.
An employee has current respirator medical clearance and fit testing but cannot demonstrate a user seal check with the assigned tight-fitting respirator. What should the DICO recommend before the employee performs a task requiring it?
Correct answer: D - Provide practical retraining and verify correct use, including the seal check.
Four employees report events during patient care. Which event meets the OSHA definition of an exposure incident requiring confidential post-exposure evaluation and follow-up?
Correct answer: D - A used blood-contaminated hollow-bore needle punctures an employee's finger.
An EMS patient is subsequently diagnosed with infectious pulmonary tuberculosis. Which transmission-based precaution category is used with Standard Precautions for this infection?
Correct answer: C - Airborne Precautions.
A responder sustains a percutaneous exposure to blood from a source with current hepatitis C infection. Which statement best describes the preventive follow-up approach?
Correct answer: B - Arrange baseline and follow-up testing; routine HCV prophylaxis is not recommended.
A healthcare worker has written documentation of a complete hepatitis B vaccine series but no documented postvaccination antibody result. After a percutaneous blood exposure, which information is specifically needed to determine the hepatitis B post-exposure pathway?
Correct answer: C - The worker's quantitative anti-HBs result and the source patient's HBsAg status.
An immunocompetent healthcare worker has two documented MMR doses, both given after the first birthday and at least 28 days apart. A later commercial measles IgG test is negative. No exposure has occurred. How should this affect the measles immunity assessment?
Correct answer: A - Accept the documented vaccination as presumptive immunity; no extra dose is indicated solely for this result.
Blood splashes into a responder's eyes. After immediate irrigation, what is the priority next action?
Correct answer: A - Report the incident and obtain immediate occupational exposure evaluation.
A responder performs emergency intubation without adequate face protection and has direct contact with respiratory secretions from a patient with confirmed meningococcal disease. Why is prompt occupational-health evaluation indicated even though no blood contact occurred?
Correct answer: B - This respiratory-secretion exposure can warrant antimicrobial prophylaxis regardless of vaccination status.
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