Nokea
A nurse cares for a client who has an 80% blockage of the right coronary artery (RCA) and is scheduled for bypass surgery. Which intervention should the nurse be prepared to implement while this client waits for surgery?
- A. Administration of IV furosemide (Lasix)
- B. Initiation of an external pacemaker
- C. Assistance with endotracheal intubation
- D. Placement of central venous access
Correct Answer: B
Rationale: An 80% blockage of the RCA can lead to bradycardia or heart block. An external pacemaker may be needed to maintain adequate heart rate and cardiac output.
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For one of the following, total repair is really achieved, with no requirement for long-term follow-up
- A. atrial septal defects
- B. ventricular septal defects
- C. pulmonic stenosis
- D. uncomplicated isolated pulmonic stenosis
Correct Answer: D
Rationale: Uncomplicated isolated pulmonic stenosis can often be repaired with no need for long-term follow-up.
Restrictive cardiomyopathy (RCM) is characterized by all the following EXCEPT
- A. normal ventricular chamber dimensions
- B. normal myocardial wall thickness
- C. preserved systolic function
- D. normal atrial chamber dimensions
Correct Answer: D
Rationale: Restrictive cardiomyopathy is characterized by impaired ventricular filling and high diastolic pressures despite normal systolic function.
Which of the following is a vasodilator?
- A. Thromboxane A2
- B. Endothelin
- C. Prostaglandin E2
- D. Urotensin II
Correct Answer: C
Rationale: Prostaglandin E2 is a vasodilator.
The most common cause for testicular pain in boys in 2-10 years of age is
- A. Testicular torsion
- B. Torsion of appendix testis
- C. Epididymitis
- D. Congenital varicocele
Correct Answer: B
Rationale: Torsion of the appendix testis is the most common cause of testicular pain in boys aged 2-10 years, as it involves the twisting of a small vestigial remnant.
Uncommon complications of severe falciparum malaria are:
- A. Stroke
- B. Anaemia
- C. Hepatitis
- D. Jaundice
Correct Answer: A
Rationale: The correct answer is A because stroke is an uncommon complication of severe falciparum malaria. The other options (b-e) are more common complications.