Acute laryngotracheobronchitis is associated with which of the following radiological signs:

Correct Answer: C

Rationale: The steeple sign is a characteristic radiological feature of acute laryngotracheobronchitis (croup). It results from subglottic airway narrowing, visible on anteroposterior neck X-rays as a tapering of the trachea.

Correct Answer: D

Rationale: When performing a neurological examination on Mr. RR, pupil size due to neurologic medications would not typically be considered an important or useful part of the examination. While assessing pupil size and reactivity can provide valuable information about brain function and potential neurological issues, the focus of the initial examination would generally be on assessing eye movements, reflexes, and signs of nuchal rigidity. Pupil size related to medications would be more relevant in a medication review or history-taking rather than in the initial neurological examination.

Correct Answer: B

Rationale: Before a bone marrow biopsy procedure, it is most important for the nurse to observe the patient for any signs of bleeding. This includes assessing the patient's coagulation status, looking for any bleeding disorders, and checking the patient's platelet levels. By monitoring for bleeding tendencies before the procedure, the nurse can ensure that the patient is in a stable condition to undergo the bone marrow biopsy safely. Additionally, post-procedure monitoring for bleeding is crucial to prevent complications such as hematoma formation. Explaining the procedure to the family, administering an analgesic, and draping the biopsy site are important steps, but ensuring the patient's safety by assessing for bleeding is the highest priority.

Correct Answer: D

Rationale: Primary ciliary dyskinesia is associated with nasal polyps and recurrent respiratory infections.

Correct Answer: D

Rationale: Postauricular, occipital, and cervical lymphadenopathy are characteristic signs of rubella, often preceding the rash.