A nurse is preparing to administer heparin 7,500 units subcutaneous. Available is heparin 10,000 units/mL. How many ml. should the nurse administer? (Round the answer to the nearest hundredth. Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["0.75"]
To calculate the volume of heparin (in milliliters) to administer, you can use the following formula:
Volume (mL) = Desired dose (units) / Concentration (units/mL)
In this case, the desired dose is 7,500 units, and the concentration is 10,000 units/mL.
Volume (mL) = 7,500 units / 10,000 units/mL
Volume (mL) = 0.75 mL
So, the nurse should administer 0.75 mL of heparin.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["300"]
Explanation
-
Convert tablespoons to milliliters:
- 1 tablespoon (Tbsp) = 15 mL
-
Determine the concentration of guaifenesin:
- The concentration is 100 mg per 5 mL
-
Calculate the amount of guaifenesin per 1 tablespoon (15 mL):
- First, find out how many milligrams are in 1 mL:
- 100 mg / 5 mL = 20 mg/mL
- Then, multiply by 15 mL:
- 20 mg/mL × 15 mL = 300 mg
- First, find out how many milligrams are in 1 mL:
So, the client is taking 300 mg of guaifenesin with each dose.
Correct Answer is ["2.1"]
Explanation
To calculate the amount of tobramycin to administer per dose, you need to follow these steps:
Step 1: Calculate the total daily dose. Total Daily Dose (mg) = Weight (kg) x Dose (mg/kg/day)
Total Daily Dose (mg) = 85 kg x 3 mg/kg/day = 255 mg/day
Step 2: Calculate the dose per divided dose (three divided doses). Dose per Divided Dose (mg) = Total Daily Dose (mg) / Number of Divided Doses
Dose per Divided Dose (mg) = 255 mg / 3 doses = 85 mg/dose
Step 3: Convert the dose to mL using the concentration. Dose (mL) = Dose (mg) / Concentration (mg/mL)
Dose (mL) = 85 mg / 40 mg/mL ≈ 2.125 mL
Rounded to the nearest tenth, the nurse should administer 2.1 mL per dose.
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