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The healthcare provider prescribes cefazolin 800 mg IM every six hours. The available vial is labeled, "Cefazolin 1 gram," and the instructions for reconstitution state, "For IM use add 2.5 mL sterile water for injection to provide a total volume of 3.0 mL." After reconstitution, the solution contains how many mg/mL? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Answer and Explanation

The Correct Answer is ["333"]

To find the answer, we can use the following formula:

(mg/mL) = (mg of cefazolin) / (mL of solution)

Substituting the given values, we get:

(mg/mL) = (1000) / (3)

Simplifying, we get:

(mg/mL) = 333.333

(rounded mg/mL) = 333

Therefore, after reconstitution, the solution contains 333 mg/mL of cefazolin.

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Correct Answer is ["83"]

Explanation

To find the answer, we can use the following formula:

(mL/hour) = (mL/minute) x 60

Substituting the given values, we get:

(mL/hour) = (2000 / 24) x 60

Simplifying, we get:

(mL/hour) = 83.333

(rounded mL/hour) = 83

Therefore, the nurse should program the infusion pump to deliver 83 mL/hour of D5W.

Correct Answer is ["6"]

Explanation

To find the answer, we can use the following steps:

- Convert the dosage of oxytocin from milliunits/min to units/hour by multiplying by 60

- Calculate the concentration of oxytocin in the IV bag by dividing the amount of oxytocin by the volume of solution

- Divide the dosage of oxytocin by the concentration of oxytocin in the IV bag to get the volume to be delivered

Using these steps, we get:

- (dosage of oxytocin in units/hour) = (2) x (60) = 120 milliunits/hour

- (concentration of oxytocin in IV bag) = (20) / (1000) = 0.02 units/mL

- (volume to be delivered in mL/hour) = (120 x 10^-3) / (0.02) = 6 mL/hour

Therefore, the nurse should program the infusion pump to deliver 6 mL/hour of oxytocin in lactated Ringer's to the patient.

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Naxlex Comprehensive Predictor Exams

The healthcare provider prescribed 2 liters of 5% Dextrose in water (D5W) to infuse in 24 hours. The IV administration set delivers 15 gtt/mL. How many mL/hour should the nurse program the infusion pump? (Enter numeric value only. If rounding is required, round to the nearest whole number.)

Correct Answer is ["83"]

Explanation

A patient receives a prescription for oxytocin 2 milliunits/min intravenously (IV) for labor augmentation. The IV bag contains oxytocin 20 units in lactated Ringer's 1 liter. How many mL/hour should the nurse program the infusion pump to deliver? (Enter numerical value only.)

Correct Answer is ["6"]

Explanation

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A client receives a prescription for loratadine suspension 10 mg by mouth once a day. The bottle is labeled "Loratadine for Oral Suspension, USP 5 mg per 5 mL." How many teaspoons should the nurse instruct the client to take? (Enter numerical value only.)

The nurse is preparing to administer methylprednisolone 40 mg IV. The medication vial is labeled "125 mg per 2 mL." How many mL of medication should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest hundredth.)

The healthcare provider prescribes a hydration infusion of normal saline to run over 3 hours at 30 mL/kg for a client who is dehydrated and weighs 70 kg. The nurse should program the infusion pump to deliver how many mL/hour? (Enter numeric value only.)