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 D
Explanation
A. Instruct the client to stay in the same position for 2 min: While it is important for the client to remain in a supine position with the head tilted back slightly after instilling nasal decongestant drops, there is no need for the client to remain in the same position for a specific duration such as 2 minutes.
B. Tell the client to blow her nose gently before the instillation: Blowing the nose before instilling nasal decongestant drops is not necessary and may cause irritation to the nasal passages. The drops should be instilled directly into the nasal passages without prior blowing of the nose.
C. Assist the client to a side-lying position: There is no need to assist the client to a side-lying position for the administration of nasal decongestant drops. The drops are typically administered with the client in a seated or supine position with the head tilted back slightly.
D. Hold the dropper 2 cm (1 in) above the nares: This is the correct action. Holding the dropper approximately 2 cm (1 in) above the nares allows for precise instillation of the drops into the nasal passages without touching the dropper to the nares, which helps prevent contamination.
Correct Answer is D
Explanation
A. "Crushing the medication might cause you to have a stomachache or indigestion."
This response provides a potential adverse effect of crushing the medication but does not directly address the reason why the aspirin should not be crushed.
B. "Crushing the medication is a good idea, and I can mix it in some ice cream for you."
This response suggests a solution to the client's difficulty swallowing medication but does not address the safety or efficacy concerns associated with crushing enteric-coated aspirin.
C. "Crushing is unsafe, as it destroys the ingredients in the medication."
While crushing enteric-coated aspirin may alter its release properties, it does not necessarily "destroy" the ingredients. This statement may be too absolute and not entirely accurate.
D. "Crushing the medication would release all the medication at once, rather than over time."
This response accurately explains why enteric-coated aspirin should not be crushed. Enteric coating is designed to prevent dissolution of the medication in the stomach and instead release it in the small intestine to reduce the risk of gastric irritation or ulceration. Crushing the medication would bypass this delayed release mechanism, potentially leading to increased gastric irritation or adverse effects.
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