A nurse is preparing to administer penicillin G benzathine 1.2 million units IM now. The amount available is penicillin G benzathine 600,000 units/mL. How many mL should the nurse administer?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["2"]
The correct answer is 2 mL. To calculate the volume to administer, the nurse should use the following formula:
Volume (mL) = Dose (units) / Concentration (units/mL)
Plugging in the given values, we get:
Volume (mL) = 1,200,000 units / 600,000 units/mL
Volume (mL) = 2 mL
Rounding to the nearest whole number, we get 2 mL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Step 1: Determine the total daily dose of quetiapine.
- The provider prescribes 50 mg every 12 hours.
- Total daily dose = 50 mg × 2 = 100 mg.
Step 2: Calculate the total dose for 3 days.
- Total dose for 3 days = 100 mg × 3 = 300 mg.
Step 3: Determine the dose per administration.
- The total daily dose is divided into two doses (every 12 hours).
- Dose per administration = 100 mg ÷ 2 = 50 mg.
Step 4: Calculate the number of tablets needed per dose.
- Each tablet is 25 mg.
- Number of tablets per dose = 50 mg ÷ 25 mg = 2 tablets.
Step 5: Confirm the number of tablets to be administered per dose on day 3.
- The dose per administration remains the same each day.
- Therefore, the nurse should administer 2 tablets per dose on day 3.
So, the nurse should administer 2 tablets per dose on day 3.
Correct Answer is D
Explanation
Choice A: 28 weeks' gestation is too early to screen for group B streptococcus infection. Group B streptococcus (GBS) is a type of bacteria that can cause serious infections in newborns if transmitted from the mother during labor and delivery. The optimal time to screen for GBS is between 35 and 37 weeks' gestation.
Choice B: 32 weeks' gestation is also too early to screen for GBS infection. Screening at this time may not reflect the true colonization status of the mother at the time of delivery, as GBS can be transient or intermittent.
Choice C: 16 weeks' gestation is much too early to screen for GBS infection. Screening at this time has no clinical value, as GBS colonization can change throughout pregnancy.
Choice D: 36 weeks' gestation is the appropriate time to screen for GBS infection. Screening at this time can identify mothers who are colonized with GBS and who need intrapartum antibiotic prophylaxis to prevent neonatal sepsis, pneumonia, and meningitis.
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