Nokea
The following criteria are indications for further investigation of premature ventricular contractions (PVCs) that could require suppressive therapy EXCEPT
- A. multiform PVCs
- B. disappear during exercise
- C. R-on-T phenomenon
- D. extreme frequency of beats
Correct Answer: B
Rationale: PVCs that disappear during exercise are less concerning and do not necessarily require suppressive therapy.
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The following are true of umbilical hernia:
- A. It is more common in Caucasian than Blacks
- B. It is commonly associated with hypothyroidism
- C. It must be operated on by two years of age
- D. It becomes obstructed in 2% of cases
Correct Answer: D
Rationale: Umbilical hernias can become obstructed in about 2% of cases. They are more common in Blacks and are not typically associated with hypothyroidism.
What should the school nurse recommend when encouraging a heart-healthy diet for a child with high cholesterol?
- A. A fat intake reduction of 5-10% of total calories
- B. A fat intake reduction of 10-15% of total calories
- C. A fat intake reduction of 15-20% of total calories
- D. A fat intake reduction of 25-35% of total calories
Correct Answer: D
Rationale: For a child with increased cholesterol, a fat reduction of 25-35% of total calories with less than 75 saturated fat and less than 200 mg of cholesterol per day is advised.
Recognised causes of delayed speech include:
- A. Hypothyroidism
- B. PKU
- C. Cystinuria
- D. Twins
Correct Answer: A
Rationale: Hypothyroidism is a known cause of delayed speech. PKU and deafness can also cause speech delays, but cystinuria is not associated with speech delay.
Obesity in childhood:
- A. Is usually associated with hypogonadism
- B. Is unlikely to lead to adult obesity
- C. Is more common in families in Social Class I than in Social Class V
- D. Can lead to overestimation of the dose of intravenous fluids when these are required
Correct Answer: C
Rationale: Childhood obesity is more common in higher social classes. It is not typically associated with hypogonadism and can lead to adult obesity. Overestimation of fluid doses is not a recognized issue.
A client with chronic kidney disease (CKD) arrives at the clinic reporting shortness of breath on exertion and extreme weakness. Vital signs are temperature 100.4°F (38°C), heart rate 110 beats/minute, respirations 28 breaths/minute, and blood pressure 175/98 mmHg. The client usually receives dialysis three times a week but missed the last treatment. STAT blood specimens are sent to the laboratory for analysis. Which laboratory results should the nurse report to the healthcare provider immediately?
- A. Potassium 6.5 mEq/L (mmol/L)
- B. Potassium 6 mEq/L (mmol/L)
- C. Potassium 0.5 mEq/L (mmol/L)
- D. Potassium 1.5 mEq/L (mmol/L)
Correct Answer: A
Rationale: Elevated potassium levels in CKD clients can lead to life-threatening arrhythmias, so this result needs immediate intervention.