While auscultating a patient's heart sounds, a nurse detects a fourth heart sound (S4). The nurse understands that this finding possibly indicates:.
Pericarditis.
Arterial obstruction or aneurysm.
Forceful atrial contraction to overcome ventricular resistance.
An infectious valvular disorder.
The Correct Answer is C
Choice A rationale:
Pericarditis is an inflammation of the pericardium and would not directly cause an S4 heart sound.
Choice B rationale:
Arterial obstruction or aneurysm would cause changes in blood flow, but not specifically an S4 heart sound.
Choice C rationale:
An S4 heart sound is an extra sound that is heard late in diastole just before S1. It occurs due to resistance to blood flow in an enlarged ventricle, often due to forceful atrial contraction to overcome ventricular resistance.
Choice D rationale:
An infectious valvular disorder could cause a variety of heart sounds, but not specifically an S42.
So, the correct answer is C, after analyzing all choices.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
A weight increase from 120 pounds to 122 pounds over 3 days is within the normal fluctuation range.
Choice B rationale:
A serum potassium level of 3.0 mEq/L after 1 week of therapy is concerning because it’s below the normal range (3.5-5.0 mEq/L)171819. This could indicate hypokalemia, which can cause serious complications if left untreated.
Choice C rationale:
A palpable liver edge 2 cm below the ribs on the right side could suggest an abnormality such as an enlarged liver.
Choice D rationale:
The presence of 1+ to 2+ edema in the feet and ankles could indicate conditions like heart failure or venous insufficiency.
So, the correct answer is Choice B, after analyzing all choices.
Correct Answer is ["B","C","D","F"]
Explanation
Choice A rationale:
The client’s temperature decreased from 37.6°C to 36.8°C1. This is within the normal body temperature range of 36.5°C to 37.2°C2, so it does not require further action.
Choice B rationale:
The client’s oxygen saturation decreased from 95% to 88%1. Normal pulse oximetry values are typically above 95%2. This decrease could indicate that the client is not getting enough oxygen, which requires further action.
Choice C rationale:
The client’s blood pressure increased from 108/50 mm Hg to 138/80 mm Hg. Normal blood pressure for adults is below 120/80 mm Hg. This increase could indicate worsening heart failure, which requires further action.
Choice D rationale:
The client’s weight increased from 80 kg to 82.1 kg. Rapid weight gain may be a sign of fluid retention, a common symptom of heart failure. This requires further action.
Choice E rationale:
The client’s urine output decreased from 480 mL/8 hr to 320 mL/8 hr.However it is still above 30ml/hr signifying normal renal function
Choice F rationale:
On Day 4, the client’s breath sounds were scattered, and crackles were heard bilaterally. This could indicate fluid accumulation in the lungs, a common symptom of heart failure. This requires further action.
So, the correct answer is Choices B, C, D, and F, after analyzing all choices.
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