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The CEICRA exam has 50 questions and runs 2 hours.
These 10 free CEICRA questions are organized by exam domain, so you can see how each part of the Council-certified Environmental Infection Control Remediation Assistant blueprint is tested. Reveal the answer and explanation under each question.
Ceiling tiles are being removed beside an allogeneic stem-cell transplant unit. A damaged barrier allows dust from the ceiling void to enter the patient corridor. For the infection prevention team, the leading construction-related concern is exposure to:
Correct answer: C - Aspergillus spores carried in airborne dust
Two older inpatients on different wards are diagnosed with Legionnaires' disease after a previously closed wing returns to service. They had no direct contact, but their shower rooms share a hot-water circulation loop. Which explanation best fits the common exposure?
Correct answer: C - Inhalation of contaminated water droplets from outlets supplied by the shared loop.
An occupied room housing a patient with infectious pulmonary tuberculosis has lost its required inward airflow. A contractor argues that applying a tuberculocidal disinfectant to the floor will compensate until the exhaust is repaired. The flaw in that proposal is that:
Correct answer: A - Surface disinfection cannot replace control of tuberculosis particles suspended in air.
During a routine check of an intact construction enclosure, a calibrated manometer reads -4.2 Pa using enclosure pressure minus corridor pressure. An indicator at the closed entry shows air moving inward. The approved plan requires -3.0 Pa or more negative, and all other containment checks pass. How should the assistant handle this reading?
Correct answer: A - Record it as compliant and continue the approved monitoring schedule.
Following a HEPA filter change, a leak scan finds high particle penetration along one section of the frame while the filter media pass the test. The fan speed and work-zone pressure are unchanged. Where should the correction be directed?
Correct answer: B - The filter's seating and gasket, where air is bypassing the media.
The specification for a 4,800-ft³ construction enclosure requires at least 12 exhaust air changes per hour (ACH). The exhaust unit is rated at 1,200 cubic feet per minute (cfm), but testing with the installed filters and ductwork measures 720 cfm. The enclosure meets its separate negative-pressure requirement. What belongs in the performance report?
Correct answer: A - 9 ACH; the measured exhaust rate does not meet the specification.
A demolition saw is running inside a temporary enclosure next to an occupied burn unit when the exhaust fan loses power. Dust is visibly escaping through the entry seam. The assistant can stop the saw without entering the dust cloud. What needs to happen first?
Correct answer: D - Stop the saw and secure the opening, then activate the facility's containment-breach response.
A bed rail in a room used by a patient with Clostridioides difficile has been cleaned of visible soil. The selected EPA-registered product carries a C. difficile spore claim and requires four minutes of continuous wet contact. The rail dries completely after 90 seconds. Which completion method satisfies the product's use directions?
Correct answer: B - Reapply the product and keep the rail wet for a full four-minute contact period.
A renovation drawing labels both an allogeneic stem-cell transplant patient's Protective Environment room and an airborne infection isolation room for infectious pulmonary tuberculosis as 'negative to corridor.' Before the drawing is approved, which pressure assignment should replace that notation?
Correct answer: D - Protective Environment positive; airborne infection isolation negative, each relative to the corridor.
Identical volumetric air samplers collect samples in two rooms during the same monitoring period. The laboratory reports adjusted fungal colony counts of 8 from 500 liters in Room A and 12 from 1,500 liters in Room B. Culture methods and room activity are comparable. Which interpretation should accompany these results?
Correct answer: C - Room A is higher at 16 versus 8 CFU/m³; these values alone do not establish patient infection risk.
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