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 ["0.2"]
Explanation
To calculate the volume of morphine sulfate to administer, we can use the following formula:
Volume (mL) = Dose (mg) / Concentration (mg/mL)
Plugging in the known values:
- Dose = 2 mg
- Concentration = 10 mg/mL
Volume (mL) = 2 mg / 10 mg/mL
Volume (mL) = 0.2 mL
Therefore, the nurse should administer 0.2 mL of morphine sulfate per dose.
Rounded to the nearest tenth: 0.2 mL
Correct Answer is B
Explanation
A. "There is no way to predict how long it will last in each individual client." This response acknowledges the variability among individuals but does not provide specific information about urinary frequency during pregnancy. While it's true that the duration of urinary frequency can vary from person to person, the response lacks guidance or reassurance for the client.
B. "It occurs during the first trimester and near the end of the pregnancy." This response correctly identifies the pattern of urinary frequency during pregnancy. Urinary frequency is common during the first trimester due to hormonal changes and the growing uterus pressing on the bladder. It may also occur near the end of pregnancy as the fetus descends into the pelvis, putting pressure on the bladder again.
C. "In most cases it only lasts until the 12th week, but it will continue if you have poor bladder tone." This response suggests that urinary frequency typically resolves by the 12th week of pregnancy but may persist if the client has poor bladder tone. While urinary frequency may improve for some women after the first trimester, attributing its continuation solely to poor bladder tone oversimplifies the issue.
D. "It’s a minor inconvenience, which you should ignore." This response minimizes the client's concerns and does not provide helpful information about urinary frequency during pregnancy. Urinary frequency can be distressing for some pregnant individuals and should not be dismissed as a minor inconvenience.
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