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The healthcare provider prescribes the standard heparin protocol for a client who weighs 95 kg and is diagnosed with a deep vein thrombosis. The loading dose is an IV bolus of 80 units/kg. Heparin is available in vials of 5,000 units/mL. How many mL of heparin should the nurse administer? (Enter numeric value only. If rounding is required, round to the nearest tenth.)

Answer and Explanation

The Correct Answer is ["1.5"]

Given:

Ordered loading dose of Heparin: 80 units/kg

Patient weight: 95 kg

Concentration of Heparin: 5,000 units/mL

Step 1: Calculate the total loading dose of Heparin:

Total loading dose (units) = Ordered dose (units/kg) x Patient weight (kg)

Total loading dose (units) = 80 units/kg x 95 kg

Total loading dose (units) = 7600 units

Step 2: Calculate the volume to be administered:

Volume (mL) = Total loading dose (units) / Concentration (units/mL)

Volume (mL) = 7600 units / 5000 units/mL

Volume (mL) = 1.52 mL

Step 3: Round to the nearest tenth:

Volume (mL) ≈ 1.5 mL

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Correct Answer is ["1.5"]

Explanation

Given:

Ordered dose of Midazolam: 3 mg SUBQ every 2 hours PRN

Concentration of Midazolam: 2 mg/mL

Step 1: Set up the proportion:

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

Step 2: Substitute the values:

3 mg / Volume = 2 mg/mL

Step 3: Solve for the unknown volume:

Volume = 3 mg / (2 mg/mL)

Volume = 3 mg x (1 mL / 2 mg)

Volume = 1.5 mL

Correct Answer is ["0.5"]

Explanation

Given:

Ordered dose of interferon beta-1b: 0.125 mg

Vial strength: 0.3 mg

Reconstitution volume: 1.2 mL

Step 1: Determine the concentration of the reconstituted solution:

Concentration (mg/mL) = Total amount of medication (mg) / Volume of solution (mL)

Concentration (mg/mL) = 0.3 mg / 1.2 mL

Concentration (mg/mL) = 0.25 mg/mL

Step 2: Calculate the volume to be administered:

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

Volume (mL) = 0.125 mg / 0.25 mg/mL

Volume (mL) = 0.5 mL

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Naxlex Comprehensive Predictor Exams

A client on the palliative care unit is receiving midazolam 3 mg SUBQ every 2 hours PRN for terminal agitation and intractable hiccups. The medication iS available in a 5 mL ampoule labeled. "2 mg/mL." How many mL should the nurse administer for each dose? (Enter the numerical value only.)

Correct Answer is ["1.5"]

Explanation

Correct Answer is ["0.5"]

Explanation

The client is prescribed magnesium hydroxide 5 oz PO for heartburn. The nurse has administered the prescribed dose 3 times today. How many mL of magnesium hydroxide has the client ingested? (Enter numeric value only.)

The healthcare provider prescribes hydroxyzine 35 mg IM for a client who is vomiting. The available drug is labeled, "50 mg/mL.". How many mL should the nurse administer? (Enter numerical value only If rounding is required, round to the nearest tenth.)

The healthcare provider prescribes ceftazidime 30 mg/kg/day or an infant weighing 3,500 grams. What dose should the nurse administer daily to this infant? (Enter numeric value only.)

A 4-year-old is admitted with croup and receives a prescription for a single dose of dexamethasone 0.6 mg/kg IM. The child weighs 35 pounds. pounds. How many mg should the nurse administer? (Enter numerical value only. If rounding is required, round to the nearest whole number.)

The healthcare provider (HCP) prescribes cefepime 1 gram IV every 12 hours to be infused in 30 minutes. The IV bag contains "Cefepime 1 gram in 0.9% normal saline 50 mL." How many mL/hr should the nurse program the infusion pump deliver? (Enter numerical value only.)

The healthcare provider prescribed 2 liters of 5% dextrose in water (D;W) 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.)