Nokea
What must the nurse assess for to determine adequate care for a client with aortic stenosis?
- A. Increased systolic pressure
- B. Calcification of aortic valve
- C. Angina
- D. Systolic murmur
Correct Answer: C
Rationale: Angina indicates insufficient nourishment of the myocardium, which can increase the risk for mortality. The systolic blood pressure increases to force blood through the narrowed opening, and systolic murmurs can be identified in some clients, but are not the most important factors. Calcification of the aortic valve is a cause for the disorder.
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The nurse is interviewing a client who is being admitted for possible mitral regurgitation. Which historical fact is of greatest value to the nurse?
- A. Congenital neural tube defect
- B. Rheumatic fever
- C. One-pack-a-day smoker for 20 years
- D. Pacemaker inserted 2 years ago
Correct Answer: B
Rationale: Rheumatic fever and subsequent heart disease is the prominent cause of valvular insufficiency. Congenital neural tube defect is associated with spina bifida not mitral regurgitation. Smoking and insertion of pacemaker are significant to heart disorders but not of greatest value as rheumatic fever.
The nursing instructor is teaching the junior nursing students about aortic regurgitation. What classification of drugs is used to sustains the client with aortic regurgitation?
- A. Antihypertensives
- B. Anticoagulants
- C. Cardiac glycosides
- D. Antiarrhythmics
Correct Answer: C
Rationale: Because aortic regurgitation is mild and only slowly progressive in most people, clients are sustained with cardiac glycosides or beta-blockers and diuretics. Antihypertensives, anticoagulants, and antiarrhythmics are not the type of drugs used to treat aortic regurgitation.
What is the best technique to identify structural changes in the mitral valve?
- A. Chest radiography
- B. Cardiac catheterization
- C. Transthoracic echocardiogram
- D. Cardiac stress test
Correct Answer: C
Rationale: Standard transthoracic or transesophageal echocardiography is the best technique to identify structural changes in the mitral valve because the performance of the valve during the cardiac cycle can be evaluated. Chest radiography shows structures in the chest. Cardiac catheterization evaluates patency of arteries and measures pressures in cardiac chambers. Cardiac stress testing shows areas of the heart muscle that may become ischemic with exercise.
The nurse is providing teaching to a post-valve replacement client. Which activit(ies) would require prophylactic antibiotic use? Select all that apply.
- A. Vision screening
- B. Dental care
- C. Echocardiogram
- D. MRI
- E. Colonoscopy
- F. Chelation therapy
Correct Answer: B,E
Rationale: Dental cleaning/care and colonoscopy are invasive procedures that can disturb the normal bacteria located in residence and place a valve replacement client at risk for infective endocarditis. Vision screening, echocardiogram, MRI, and chelation therapy are not invasive procedures and do not mobilize bacteria.
A client reports a family history of aortic stenosis. Which assessment finding would the nurse identify as a likely contributing factor?
- A. High blood pressure
- B. Missing aortic cusp
- C. Unidirectional blood flow
- D. Chest pain
Correct Answer: B
Rationale: In young adults, aortic stenosis usually is a consequence of a congenital defect in which the valve has two instead of three cusps. High blood pressure and chest pain are symptoms that can be exhibited in aortic stenosis. Unidirectional blood flow is the normal flow of blood through the heart.