A nurse is assisting with teaching a newly licensed nurse about heart sounds. Which of the following sounds is heard when the aortic and pulmonic valves close?
S1
S2
S3
S4
The Correct Answer is B
Choice A reason : S1 represents the sound made by the closure of the atrioventricular valves (mitral and tricuspid valves) and is not the sound associated with the closure of the aortic and pulmonic valves.
Choice B reason : S2 is the sound heard when the aortic and pulmonic valves close. It is often described as a "dub" and occurs at the end of ventricular systole.
Choice C reason : S3 is a rare extra heart sound that follows S2 and usually indicates an increase in left ventricular filling pressure, which can be found in conditions such as heart failure.
Choice D reason : S4 is another extra heart sound that occurs just before S1. It is typically associated with a stiff or hypertrophic ventricle and is not related to the closure of the aortic and pulmonic valves
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
Choice A reason: Monitoring cholesterol levels is essential while taking lisinopril. This medication is an angiotensin-converting enzyme (ACE) inhibitor used to treat high blood pressure, heart failure, and heart attack. Regular monitoring helps assess the impact of lisinopril on lipid levels and overall cardiovascular health. Elevated cholesterol can contribute to heart disease, so monitoring allows for timely interventions and adjustments in treatment.
Choice C reason: Potassium-rich foods are relevant because lisinopril can affect potassium levels. ACE inhibitors may lead to hyperkalemia (high potassium levels), especially in patients with impaired kidney function. Encouraging potassium-rich foods helps maintain a balance and prevent complications.
Choice D reason: Reporting a persistent dry cough is crucial. Lisinopril is associated with a common side effect: a dry, persistent cough. This occurs due to increased levels of bradykinin, a substance affected by ACE inhibitors. If the client experiences this cough, it's essential to notify the doctor for potential medication adjustments.
Choice E reason: Monitoring blood pressure aligns with the purpose of lisinopril. Regular blood pressure checks help assess the effectiveness of the medication in controlling hypertension. Consistent monitoring ensures timely adjustments and prevents complications related to high blood pressure.
Correct Answer is D
Explanation
Choice A reason : Applying ice to the extremity is not a standard intervention for DVT. Ice is typically used to reduce inflammation and pain, but in the case of DVT, the priority is to prevent the clot from growing and embolizing. The use of warmth, not cold, may be recommended to help reduce discomfort and swelling.
Choice B reason : Administering vasodilating medications is not a typical intervention for DVT. Vasodilators are used to widen blood vessels and improve blood flow, but they do not address the risk of clot formation or embolization associated with DVT. The mainstay of medical treatment for DVT is anticoagulant therapy, which helps to prevent further clotting.
Choice C reason : Restricting oral fluids is not an intervention for DVT. Adequate hydration is important in the management of DVT as it can help to prevent blood from thickening and reduce the risk of further clot formation. There is no indication to restrict fluids unless there is another underlying condition that requires it.
Choice D reason : Monitoring platelet levels is an important intervention in the care of a client with DVT, especially if they are receiving anticoagulant therapy. Anticoagulants can affect platelet function and count, and monitoring is necessary to ensure safe levels and prevent complications such as bleeding or thrombocytopenia.
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