A nurse is auscultating a client's heart sounds and hears an extra heart sound before what should be considered the first heart sound S1. The nurse should document this finding as which of the following heart sounds?
A friction rub
A split second heart sound S₂
The third heart sound (S3)
The fourth heart sound (S4)
The Correct Answer is D
A. A friction rub: A friction rub is a sound caused by the rubbing of inflamed pericardial layers and is not classified as a heart sound like S1 or S2. It is unrelated to the sequence of heart sounds.
B. A split second heart sound S₂: A split S₂ occurs during the closure of the aortic and pulmonary valves and is heard after S1, not before.
C. The third heart sound (S3): S3, or the ventricular gallop, occurs shortly after S2 during early diastole and indicates rapid ventricular filling. It is not heard before S1.
D. The fourth heart sound (S4): S4, known as the "atrial gallop," occurs just before S1 during atrial contraction. It is associated with a stiff or hypertrophied ventricle and is often indicative of underlying heart disease, especially in older adults.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Cheyne-Stokes respirations: Cheyne-Stokes respirations are characterized by alternating periods of hyperventilation followed by apnea. This respiratory pattern is often observed in clients with conditions affecting the central nervous system, such as brain injury or stroke.
B. Apneustic respirations: Apneustic respirations are characterized by prolonged, gasping inhalations followed by extremely short, ineffective exhalations. This pattern is associated with damage to the pons, a part of the brainstem.
C. Stridor: Stridor is a high-pitched, noisy breathing sound caused by turbulent airflow through a partially obstructed airway. It is not related to the described alternating pattern of hyperventilation and apnea.
D. Kussmaul respirations: Kussmaul respirations are deep, rapid respirations often seen in metabolic acidosis. They are not characterized by the alternating pattern described in the scenario.
Correct Answer is B
Explanation
A. Myringotomy: Myringotomy is a procedure involving the insertion of tubes into the eardrum to treat conditions such as chronic ear infections. This procedure is not associated with a significant risk of deep-vein thrombosis.
B. Hip arthroplasty: Hip arthroplasty, or hip replacement surgery, is associated with an increased risk of deep-vein thrombosis due to factors such as immobility, surgical trauma, and alterations in blood flow. Prophylactic measures, such as anticoagulant medications and early ambulation, are often employed to reduce this risk.
C. Cataract extraction: Cataract extraction is a procedure to remove a cloudy lens from the eye. This surgery is not typically associated with a high risk of deep-vein thrombosis.
D. Laparoscopic appendectomy: Laparoscopic appendectomy, a minimally invasive procedure to remove the appendix, is generally associated with a lower risk of deep-vein thrombosis compared to major orthopedic surgeries like hip arthroplasty.
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