A nurse is reviewing the medical record of a client who has schizophrenia and is taking clozapine.
Which of the following findings should the nurse identify as a contraindication to the administration of clozapine?
Heart rate 58/min.
Fasting blood glucose 100 mg/dL.
WBC count 2,900/mm3.
Hgb 14 g/dL.
The Correct Answer is C
Choice A rationale:
Heart rate 58/min. Clozapine, an atypical antipsychotic medication, can cause bradycardia (slow heart rate) as a side effect. However, the heart rate of 58/min is within the normal range for adults, so it is not a contraindication for clozapine administration.
Choice B rationale:
Fasting blood glucose 100 mg/dL. A fasting blood glucose level of 100 mg/dL is within the normal range (70-99 mg/dL) for adults. It is not a contraindication for clozapine administration.
Choice C rationale:
WBC count 2,900/mm3. Clozapine can cause agranulocytosis, a severe reduction in white blood cell (WBC) count, which can lead to increased susceptibility to infections. A WBC count of 2,900/mm3 is significantly below the normal range (4,000-11,000/mm3) and is a contraindication for clozapine administration due to the risk of severe immunosuppression.
Choice D rationale:
Hgb 14 g/dL. Hemoglobin (Hgb) level of 14 g/dL is within the normal range for adult males (13.8-17.2 g/dL) and females (12.1-15.1 g/dL). It is not a contraindication for clozapine administration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C: Initiate continuous cardiac monitoring.
Choice A rationale:
Implementing fluid restrictions is not recommended for a child with diabetic ketoacidosis (DKA). DKA is characterized by severe dehydration due to osmotic diuresis, and fluid replacement is a critical component of treatment to restore hydration and circulatory volume.
Choice B rationale:
Monitoring vital signs every 8 hours is not sufficient for a child with DKA. DKA is an acute, life-threatening condition that requires close monitoring of vital signs to detect changes in the patient’s condition promptly. Vital signs should be monitored more frequently, typically every 1 to 2 hours, depending on the severity of the DKA and institutional protocols.
Choice C rationale:
Continuous cardiac monitoring is recommended for a child with DKA. DKA can lead to serious electrolyte imbalances, such as hypokalemia, which can cause cardiac arrhythmias. Continuous cardiac monitoring allows for the early detection and treatment of these potential complications.
Choice D rationale:
Administering subcutaneous insulin 30 minutes before meals is not appropriate for the acute management of DKA. In DKA, insulin is typically administered intravenously to rapidly decrease blood glucose levels and correct metabolic acidosis. Subcutaneous insulin is not used until the patient is stable and able to eat.
Correct Answer is B
Explanation
The correct answer is Choice B.
Choice A rationale: Maintaining bed elevation at 20 degrees is not recommended. The recommended bed elevation for patients receiving enteral tube feedings is at least 30 to 45 degrees.This is to prevent aspiration of the feeding solution into the lungs.
Choice B rationale: Flushing the tubing with 30 mL of water every 4 hours is a recommended practice.This helps to maintain the patency of the feeding tube and prevent clogging.
Choice C rationale: Checking for gastric residual every 12 hours is not sufficient.For patients receiving continuous tube feedings, gastric residual volume (GRV) should be monitored every 4 hours.This helps to assess tolerance to the feeding and prevent complications such as aspiration.
Choice D rationale: Placing enough formula in the container to last 18 hours is not recommended.For an open system, the formula should be replaced every 4 hours to prevent bacterial growth.
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