Nokea
All the following are true regarding coarctation of the aorta EXCEPT
- A. notching of ribs is noted
- B. doppler is useful for demonstrating severe obstruction
- C. diagnostic catheterization is mandatory before surgery
- D. CT and MRI are valuable noninvasive tools for evaluation when the echocardiogram is equivocal
Correct Answer: C
Rationale: Diagnostic catheterization is not always mandatory before surgery for coarctation of the aorta.
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Atypical hemolytic uremic syndrome is associated with
- A. Factor VII deficiency
- B. Factor H deficiency
- C. Interleukin 10 deficiency
- D. Properdin deficiency
Correct Answer: B
Rationale: Factor H deficiency is a known cause of atypical hemolytic uremic syndrome.
What is cardiac power output (CPO) in a patient with acute anterior wall ST-elevation myocardial infarction and left ventricular failure? His mean arterial pressure was 60 mm Hg and cardiac output calculated on echo was 2.91l min−1.
- A. 0.48
- B. 0.38
- C. 0.58
- D. 0.68
Correct Answer: C
Rationale: Cardiac power output is calculated as (MAP × cardiac output) / 451. For the given values, the correct calculation gives a value of 0.58.
A child has third-degree burns of the hands, face, and chest. Which nursing diagnosis takes priority?
- A. Ineffective airway clearance related to edema
- B. Disturbed body image related to physical appearance
- C. Impaired urinary elimination related to fluid loss
- D. Risk for infection related to epidermal disruption
Correct Answer: A
Rationale: Airway clearance is the top priority in burn patients, especially with facial burns, as swelling can obstruct the airway.
Clinical manifestations of hypoplastic left-heart syndrome in the 1st 48 hr of life include
- A. always obvious color
- B. deep-blue skin
- C. bounding peripheral pulses
- D. occasional association with Turner syndrome
Correct Answer: C
Rationale: Bounding peripheral pulses are not typical in hypoplastic left-heart syndrome.
Rare causes of bloody diarrhoea include:
- A. Campylobacter infection
- B. Peutz-Jegher's syndrome
- C. Enterotoxigenic E. coli
- D. Crohn's disease
Correct Answer: B
Rationale: Rare causes of bloody diarrhoea include conditions like Peutz-Jegher's syndrome which is a genetic disorder causing polyps in the gastrointestinal tract. Campylobacter Shigella and Enterotoxigenic E. coli are common causes of infectious diarrhoea while Crohn's disease is a chronic inflammatory condition.