A nurse is caring for a 1-month-old infant who weighs 3500 g and is prescribed a dose of cephazolin 50 mg/kg by intermittent IV bolus three times daily. How many mg should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero)
The Correct Answer is ["175"]
We are asked to calculate the dosage of cephazolin for a 1-month-old infant based on their weight.
Steps to solve: 1. Identify the given values:
- Dose per kg = 50 mg/kg
- Weight of the infant = 3500 g
2. Set up the formula: Dosage (mg) = Dose per kg (mg/kg) × Weight (kg)
3. Since the weight is given in grams, convert it to kilograms: 3500 g / 1000 g/kg = 3.5 kg
4. Substitute the known values into the formula and calculate: Dosage (mg) = 50 mg/kg × 3.5 kg Dosage (mg) = 175 mg
5. Round the answer to the nearest tenth: Dosage (mg) = 175.0 mg
The nurse should administer 175.0 mg of cephazolin per dose.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["B","D","E"]
Explanation
A. Fine hand tremors and pill rolling: These symptoms are more indicative of parkinsonism, which is another extrapyramidal side effect of antipsychotic medications but not specifically tardive dyskinesia.
B. Facial grimacing and eye blinking: Facial grimacing and eye blinking are classic signs of tardive dyskinesia. These involuntary movements of the face are often seen in patients who have been on antipsychotic medications for an extended period.
C. Urinary retention and constipation: Urinary retention and constipation are not typically associated with tardive dyskinesia. These symptoms may be related to other medication side effects or unrelated conditions.
D. Involuntary pelvic rocking and hip thrusting movements: These movements are characteristic of tardive dyskinesia. Involuntary pelvic rocking and hip thrusting can occur as part of the abnormal involuntary movements seen in tardive dyskinesia.
E. Tongue thrusting and lip smacking: Tongue thrusting and lip smacking are classic signs of tardive dyskinesia, particularly involving the orofacial region. These movements can be distressing for patients and may interfere with speech and eating.
Correct Answer is D
Explanation
To determine the total number of units of insulin to prepare in the insulin syringe, add together the prescribed doses of regular insulin and NPH insulin.
Regular insulin: 14 units NPH insulin: 28 units
Total: 14 units (regular insulin) + 28 units (NPH insulin) = 42 units
Therefore, the nurse should prepare a total of 42 units of insulin in the insulin syringe: 14 units of regular insulin and 28 units of NPH insulin
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