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The physician ordered 2/3 strength Ensure 6 oz PO q4h for 24 hrs. What is the total volume in mL you would administer in 24 hrs?

60 mL

120 mL

180 mL

1080 mL

Answer and Explanation

The Correct Answer is D

Convert ounces to millilitres (1 oz = 29.5735 mL):

6 oz×29.5735 mL/oz=177.441 mL6

Calculate the frequency of doses per day:

The patient receives a dose every 4 hours, so in 24 hours, the number of doses is:

24 hours/4 hours/dose=6 doses

Calculate the total volume for all doses:

177.441 mL/dose×6 doses=1064.646 mL

Rounding to the nearest whole number=1080 mL

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Correct Answer is D

Explanation

Given:

Ordered dose of Lithium: 300 mg

Available Lithium capsules: 150 mg/capsule

Step 1: Calculate the number of capsules required:

Number of capsules = Desired dose (mg) / Strength of each capsule (mg/capsule)

Number of capsules = 300 mg / 150 mg/capsule

Number of capsules = 2 capsules

A. 5 mL B. 5.6 mL C. 0.5 mL D. 6 mL

Correct Answer is B

Explanation

Given:

Ordered dose of amoxicillin: 30 mg/kg/day divided every 12 hours

Toddler's weight: 33 lbs

Concentration of amoxicillin suspension: 200 mg/5 mL

Step 1: Convert the toddler's weight from pounds to kilograms:

1 pound (lb) = 0.453592 kilograms (kg)

Weight in kg = 33 lbs x 0.453592 kg/lb = 14.968 kg

Step 2: Calculate the total daily dose of amoxicillin:

Total daily dose (mg) = Ordered dose (mg/kg/day) x Weight (kg)

Total daily dose (mg) = 30 mg/kg/day x 14.968 kg

Total daily dose (mg) = 449.04 mg/day

Step 3: Calculate the dose per administration:

Since the medication is given every 12 hours, there are 2 administrations per day.

Dose per administration (mg) = Total daily dose (mg) / Number of administrations per day

Dose per administration (mg) = 449.04 mg/day / 2 administrations/day

Dose per administration (mg) = 224.52 mg

Step 4: Calculate the volume to be administered:

Volume (mL) = Dose per administration (mg) / Concentration (mg/mL)

Volume (mL) = 224.52 mg / (200 mg/5 mL)

Volume (mL) = 224.52 mg x (5 mL / 200 mg)

Volume (mL) = 5.613 mL

Step 5: Round to the nearest tenth:

Volume (mL) ≈ 5.6 mL

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The physician ordered 2/3 strength Ensure 6 oz PO q4h for 24 hrs. What is the total volume in mL you would administer in 24 hrs?

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Correct Answer is D

Explanation

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Explanation

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