Which valves of the heart create the S2 heart sound?

Tricuspid and Aortic

Mitral and Tricuspid

Aortic and Pulmonic

Pulmonic and Mitral

Answer and Explanation

The Correct Answer is C

Choice A reason: The S2 sound is produced by the closure of aortic and pulmonic valves, not tricuspid and aortic. Tricuspid closure contributes to S1, so this is incorrect for the S2 heart sound.

Choice B reason: Mitral and tricuspid valve closure produce the S1 sound, not S2. Aortic and pulmonic valves close during diastole, creating S2, so this incorrect for the second heart sound.

Choice C reason: The S2 sound results from the closure of the aortic and pulmonic valves at the end of systole, marking diastole’s start. This is the standard mechanism, making it the correct choice for S2.

Choice D reason: Pulmonic and mitral valves don’t close simultaneously; mitral closes for S1, pulmonic for S2. Aortic and pulmonic valves form S2, so this is incorrect for the heart sound.

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Free Nursing Study Resources

Correct Answer is A

Explanation

Choice A reason: Clubbing, characterized by bulbous nail bed enlargement, is associated with chronic hypoxemia from conditions like asthma or COPD. It results from long-term low oxygen levels, making it the expected finding in this patient with chronic respiratory issues.

Choice B reason: Onychomycosis is a fungal nail infection unrelated to hypoxemia or asthma. Clubbing is directly linked to chronic oxygen deficiency, so this is not the expected nail condition in this patient’s context.

Choice C reason: Spooning (koilonychia) is associated with iron deficiency anemia, not hypoxemia or asthma. Clubbing is the nail abnormality seen in chronic respiratory conditions, so this is incorrect for the patient’s condition.

Choice D reason: Paronychia is an infection around the nail, typically from trauma or bacteria, not hypoxemia. Clubbing is the hallmark nail change in chronic asthma with low oxygen, so this is not the expected finding.

A. Stand approximately 6 feet away to ensure that the patient can really hear at this distance. B. Ask the patient to place his or her finger in their ear to occlude outside noise. C. Whisper a set of random numbers, words, or letters, and then ask the patient to repeat them. D. Shield the lips so that the sound is muffled.

Correct Answer is C

Explanation

Choice A reason: Standing 6 feet away is too far for a whisper test, which is typically done at 1–2 feet. Whispering words for repetition is the standard method, so this is incorrect for hearing assessment.

Choice B reason: Occluding one ear tests unilateral hearing but isn’t the primary voice test method. Whispering random words and checking repetition directly assesses hearing, so this is not the best action.

Choice C reason: Whispering random numbers, words, or letters at 1–2 feet and asking the patient to repeat them is the standard voice test for hearing. This method is effective, making it the correct choice.

Choice D reason: Shielding lips muffles sound unnecessarily and prevents lip-reading, which isn’t the goal. Clear whispering and repetition test auditory function, so this is incorrect for the voice test.

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Which valves of the heart create the S2 heart sound?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

The nurse examines a patient who has asthma and chronic hypoxemia. The nurse would expect to find which condition of the nails?

Correct Answer is A

Explanation

In performing a voice test to assess hearing, which of these actions would the nurse perform?

Correct Answer is C

Explanation

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