CRN Practice Questions - Certified Radiology Nurse Exam - CRN Practice Questions

Question 1

Before an iodinated contrast CT, the radiology nurse should screen the patient for which condition that most increases the risk of contrast-induced nephropathy?

Well-controlled hypertension Pre-existing chronic kidney disease (eGFR < 30) Allergic rhinitis Chronic stable asthma without recent exacerbation

Correct Answer:

Pre-existing chronic kidney disease (eGFR < 30)

Question 2

A patient scheduled for a gadolinium-enhanced MRI has an eGFR of 25 mL/min/1.73m^2. The most appropriate nursing action is to:

Proceed with a Group I (high-risk) gadolinium agent Notify the radiologist to discuss using a Group II macrocyclic agent or alternative imaging Premedicate with corticosteroids and proceed Cancel the study without discussion

Correct Answer:

Notify the radiologist to discuss using a Group II macrocyclic agent or alternative imaging

Question 3

Which prior reaction history mandates the strongest premedication consideration before iodinated contrast administration?

Mild urticaria 2 days after contrast Diaphoresis during a prior CT without rash or wheeze Prior moderate bronchospasm requiring treatment after iodinated contrast Nausea immediately after a prior CT

Correct Answer:

Prior moderate bronchospasm requiring treatment after iodinated contrast

Question 4

During the pre-procedure assessment for an MRI, which implanted device most clearly contraindicates the scan unless verified MR-conditional?

A titanium total hip arthroplasty placed 5 years ago An older non-MR-conditional cardiac pacemaker A modern dental amalgam filling A surgical staple line from 2 years ago

Correct Answer:

An older non-MR-conditional cardiac pacemaker

Question 5

When obtaining baseline vital signs prior to moderate sedation, the nurse should also document:

Only blood pressure Mallampati airway score and ASA physical status classification Only temperature Only pain score

Correct Answer:

Mallampati airway score and ASA physical status classification

Exam overview

About this Exam

Prepare with the CRN Practice Questions - Certified Radiology Nurse Exam practice quiz. This question bank includes 100 questions covering contrast, patient, nurse, iodinated, and sedation. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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CRN Practice Questions - Certified Radiology Nurse Exam

This practice set contains 100 questions from the matching question bank and focuses on contrast, patient, nurse, iodinated, and sedation. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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CRN Practice Questions - Certified Radiology Nurse Exam

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