Nokea
A client with progressive mitral valve prolapse is experiencing sympathetic nervous system symptoms in addition to prolapse symptoms. Which teaching point should be stressed by the nurse to minimize these effects?
- A. Antibiotic therapy before invasive procedures
- B. Low-dose aspirin daily
- C. Avoid caffeine.
- D. Decrease fluid and sodium intake.
Correct Answer: C
Rationale: The symptoms associated with sympathetic nervous response (anxiety, agitation, nervousness, and palpitations) are often managed with antianxiety medications and advisement to avoid caffeine and over-the-counter medications that contain stimulants. Periodic antibiotic therapy use before an invasive procedure is not associated with sympathetic nervous system symptoms. Low-dose aspirin is used to prevent thrombus formation. Decreasing fluid and sodium intake is indicated for the control of congestive failure.
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The nurse provides care for an older adult client who is diagnosed with valvular heart disease. On auscultation of the client's heart sounds, the nurse notes an erratic heart rhythm. Which age-related change is the most likely cause for this finding?
- A. A stiffening of the aorta
- B. A decrease in metabolism
- C. An increase in thirst sensation
- D. A thinning of the mitral valve
Correct Answer: A
Rationale: Age-related effects, such as stiffening of the aorta, calcification, and fibrotic thickening (not thinning) of the mitral and aortic valves, contribute to development of symptoms (e.g., increased systolic blood pressure [BP], dangerous arrhythmias [erratic heart rhythms or rates that are too fast or slow] sometimes referred to as dysrhythmias) and complications (e.g., increased myocardial oxygen demand, heart failure, and alterations in cardiac output) in the older adult with valvular heart disease. A decrease in metabolism is an age-related effect for clients with valvular heart disease; however, this affects the dosage of prescribed medication and is not the cause of the client's dysrhythmia. A decrease, not increase, in thirst sensation is an age-related change that could lead to dehydration, and, thus, changes in the client's heart rhythm.
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.
When assessing a client, what sign would the nurse know is an early sign of an impending heart failure?
- A. S1 heart sound
- B. S3 heart sound
- C. Heart murmur
- D. Crackles
Correct Answer: B
Rationale: An S3 heart sound, if heard, is an early sign of impending heart failure. The S1 heart sound is normal. Heart murmur is not a sign of impending heart failure. Moist lung sounds could be indicative of either heart failure or pneumonia.
A client is scheduled for transcatheter aortic valve implantation (TAVI). Which statement from the nurse best explains this procedure to family members?
- A. A small incision in the chest wall will allow for valve repair.
- B. A catheter is used for partial replacement of the valve.
- C. A small window incision is made so a pig valve can replace the diseased valve.
- D. A complete aortic valve replacement is the best surgical treatment.
Correct Answer: B
Rationale: TAVI procedure is a minimally invasive procedure (no incision) that uses balloon valvuloplasty, stent, and partial replacement of the diseased valve using a portion of a pig valve. The TAVI is mostly used in older adults who are at high risk for the complete aortic valve replacement and helps to relieve recurring symptoms.
Which symptom is most important in determining the diagnosis and nursing care for a client experiencing pulmonary hypertension?
- A. Increased stroke volume
- B. Bradycardia
- C. Frothy sputum
- D. High systolic pressure
Correct Answer: C
Rationale: Tachycardia, low systolic pressure, and decreased stroke volume are symptoms associated with pulmonary hypertension. A productive cough with pink-tinged frothy sputum can indicate progression of the disorder and need for treatment.