Nokea
Which of the following has the highest proportion of etiology of congenital malformations?
- A. Maternal infections
- B. Maternal illness
- C. Environmental agents
- D. Monogenic inheritance
Correct Answer: D
Rationale: Monogenic inheritance accounts for the highest proportion of congenital malformations.
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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 client with ulcerative colitis is admitted to the medical unit during an acute exacerbation. The nurse should instruct the unlicensed assistive personnel (UAP) to report which finding related to the client's bowel movements?
- A. Hard pellets of stool
- B. Clay-colored stool
- C. Stool with fatty streaks
- D. Blood in the stool
Correct Answer: D
Rationale: Blood in the stool is a common finding during an acute exacerbation of ulcerative colitis, which is an inflammatory condition of the colon.
Developmental delay in children below 3 years of age is defined as
- A. 25% departure from typical performance in 2 developmental domains
- B. 25% departure from typical performance in any developmental domain
- C. 30% departure from typical performance in ≥2 developmental domains
- D. 30% departure from typical performance in any developmental domain
Correct Answer: D
Rationale: Developmental delay in children below 3 years is defined as a 30% departure from typical performance in any developmental domain, indicating significant lag.
The nurse reviews the laboratory results of a client during an annual physical examination and identifies a positive guaiac test of stool. Which additional serum laboratory test result should the nurse review?
- A. Glucose
- B. Platelet count
- C. White blood cell count
- D. Amylase
Correct Answer: B
Rationale: A positive guaiac test indicates gastrointestinal bleeding. A platelet count is essential to assess for thrombocytopenia, which could contribute to bleeding.
Which finding might delay a cardiac catheterization procedure on a 1-year-old?
- A. 30th percentile for weight
- B. Severe diaper rash
- C. Allergy to soy
- D. Oxygen saturation of 91% on room air
Correct Answer: B
Rationale: A severe diaper rash may indicate potential infection, which is a contraindication for the standard groin approach during catheterization.