Proteins found in muscle fibers include:
- A. Vimentin
- B. Saccharin
- C. Keratin
- D. Desmin
Correct Answer: D
Rationale: Desmin: Desmin is an intermediate filament protein found in muscle cells, providing structural support and maintaining the integrity of muscle fibers.
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A client returns to the unit following a suprapubic prostatectomy. He has a three-way catheter in place with a continuous bladder irrigation infusing. Which assessment finding warrants immediate intervention by the nurse?
- A. True urinary output of 50ml/hr
- B. Lower abdominal tenderness
- C. Blood urine output with clots
- D. Urine leaking around the meatus
Correct Answer: D
Rationale: Urine leaking around the meatus may indicate catheter displacement or obstruction, requiring immediate attention to prevent complications.
Regarding cisapride:
- A. It is licensed for use in children
- B. Fatal arrhythmias have been reported
- C. Concurrent administration with erythromycin is not advised
- D. It commonly causes constipation
Correct Answer: B
Rationale: Fatal arrhythmias have been reported: Cisapride, a gastrointestinal prokinetic agent, has been linked to fatal arrhythmias, particularly when combined with certain drugs like erythromycin.
Paroxysmal hypercyanotic attacks (hypoxic, blue, or tet spells) are a particular problem during the lst 2 yr of life. They are characterized by
- A. early evening occurrence
- B. an increase in intensity of the systolic murmur
- C. unpredictable onset
- D. metabolic alkalosis
Correct Answer: A
Rationale: Unpredictable onset and metabolic alkalosis are common features of tet spells.
An adult male client is admitted for Pneumocystis carinii pneumonia (PCP) secondary to AIDS. While hospitalized, he receives IV pentamidine isethionate therapy. In preparing this client for discharge, what important aspect regarding his medication therapy should the nurse explain?
- A. IV pentamidine may offer protection to other AIDS-related conditions, such as Kaposi's sarcoma
- B. It will be necessary to continue prophylactic doses of IV or aerosol pentamidine every month
- C. IV pentamidine will be given until oral pentamidine can be tolerated
- D. AZT (Azidothymidine) therapy must be stopped when IV or aerosol pentamidine is being used.
Correct Answer: B
Rationale: Prophylactic doses of pentamidine are necessary to prevent PCP recurrence and other AIDS-related infections.
The most likely diagnosis in the patient is
- A. patent ductus arteriosus
- B. critical aortic stenosis
- C. critical pulmonic stenosis
- D. tetralogy of Fallot
Correct Answer: D
Rationale: Tetralogy of Fallot involves right ventricular hypertrophy, a VSD, overriding aorta, and pulmonary stenosis, consistent with the findings.