.A nurse is preparing to administer vitamin K 1mg IM to a newborn. Available is vitamin K injection 1 mg/0.5 mL. How many mL 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 ["0.5"]
To determine the correct volume to administer, we use the formula for calculating the dose:
Volume to administer=Prescribed dose ÷ Available concentration
Given:
● Prescribed dose: 1 mg
● Available concentration: 1 mg per 0.5 mL
Plugging in the values:
Volume to administer=1 mg÷ 1 mg/0.5 ml
Perform the division:
Volume to administer=0.5 mL
So, the nurse should administer 0.5 mL per dose.
Since the question specifies rounding to the nearest tenth and to use a leading zero if it applies (and not to use a trailing zero), the final answer is: 0.5 mL
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Treat the urinary tract infection with another drug: This might be necessary if ciprofloxacin interacts significantly with birth control pills, but it's not the first line of action.
B. Continue with both therapies simultaneously: Some antibiotics can decrease the effectiveness of birth control pills. It's important to advise using a backup method during and for a short time after ciprofloxacin therapy.
C. Complete the ciprofloxacin therapy and use a backup method of contraception: This is the most appropriate advice. Jennifer should finish the antibiotic to treat the infection, but a backup method (like condoms) is needed to prevent pregnancy because ciprofloxacin might decrease the effectiveness of birth control pills.
D. Abstain from sexual activity until the end of ciprofloxacin therapy: While this would be completely effective, it might not be realistic for everyone. Using a backup method offers protection while still allowing sexual activity.
Correct Answer is ["2"]
Explanation
To calculate the number of dexamethasone 1.5 mg tablets needed to administer a 3 mg dose, we use the following formula:
Number of tablets=Dose (mg)÷Strength per tablet (mg)
Given:
Dose = 3 mg
Strength per tablet = 1.5 mg
Plugging these values into the formula:
Number of tablets=3 mg÷1.5 mg/tablet
Number of tablets=2
So, the nurse should administer 2 tablets of dexamethasone.
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