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A nurse is preparing to administer lithium 300 mg PO to a client who has bipolar disorder. Available is lithium 150 mg capsules. How many capsules 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.)

A.

1.5 caps

B.

0.5 caps

C.

1 cap

D.

2 caps

Answer and Explanation

The Correct Answer is D

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


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Related Questions

Correct Answer is D

Explanation

Given:

Ordered dose of clindamycin palmitate: 225 mg

Concentration of clindamycin palmitate oral suspension: 75 mg/5 mL

Step 1: Set up the proportion:

Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL)

Step 2: Substitute the values:

225 mg / Volume = 75 mg/5 mL

Step 3: Solve for the unknown volume:

Volume = 225 mg / (75 mg/5 mL)

Volume = 225 mg x (5 mL / 75 mg)

Volume = 15 mL

Correct Answer is B

Explanation

Given:

Volume of fluid: 100 mL

Infusion time: 4 hours

Drop factor: 60 gtt/mL

Formula:

Flow rate (gtt/min) = (Volume (mL) / Time (hr)) x Drop factor (gtt/mL) / 60 min/hr

Step 1: Calculate the infusion rate in mL/hr:

Infusion rate (mL/hr) = Volume (mL) / Time (hr)

Infusion rate (mL/hr) = 100 mL / 4 hr

Infusion rate (mL/hr) = 25 mL/hr

Step 2: Calculate the flow rate in gtt/min:

Flow rate (gtt/min) = (Infusion rate (mL/hr) x Drop factor (gtt/mL)) / 60 min/hr

Flow rate (gtt/min) = (25 mL/hr x 60 gtt/mL) / 60 min/hr

Flow rate (gtt/min) = 1500 gtt/hr / 60 min/hr

Flow rate (gtt/min) = 25 gtt/min

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