A client is receiving an intravenous infusion of 1.5 L of saline solution at a rate of 75 mL/hr.
How many hours will it take to finish the infusion at the current rate?

To find the milliliters to administer, you need to use the formula for dosage calculation:

Volume (mL) = Dose ordered (mg) / Dose available (mg) x Volume available (mL)

Since the dose ordered is 275 mg, the dose available is 500 mg, and the volume available is 2 mL, plug in these values into the formula:

Volume (mL) = 275 mg / 500 mg x 2 mL

Simplify and solve for the volume:

Volume (mL) = 1.1 mL

Therefore, the nurse should administer **1.1 mL** of Primaxin to the patient.

To find the number of capsules of amoxicillin required for 5 days, you need to calculate the following:

- The total dose of amoxicillin in milligrams (mg) for 5 days using the formula: Total dose (mg) = Prescribed dose (mg) x Frequency (times/day) x Duration (days)
- The number of capsules of amoxicillin using the formula: Number of capsules = Total dose (mg) / Strength per capsule (mg)

First, use the formula for total dose to find the amount of amoxicillin in milligrams for 5 days:

Total dose (mg) = Prescribed dose (mg) x Frequency (times/day) x Duration (days)

Since the prescribed dose is 250 mg, the frequency is 3 times per day, and the duration is 5 days, plug in these values into the formula:

Total dose (mg) = 250 mg x 3 times/day x 5 days

Simplify and solve for the total dose:

Total dose (mg) = 3750 mg

Next, use the formula for number of capsules to find how many capsules of amoxicillin are needed:

Number of capsules = Total dose (mg) / Strength per capsule (mg)

Since the total dose is 3750 mg and the strength per capsule is 250 mg, plug in these values into the formula:

Number of capsules = 3750 mg / 250 mg

Simplify and solve for the number of capsules:

Number of capsules = 15

Therefore, the client needs **15 capsules** of amoxicillin for 5 days.