Order: Polymixin B sulfate 25,000 units/kg/d in four equally ...

[javeds]

Order: Polymixin B sulfate 25,000 units/kg/d in four equally divided doses IM. The label on the vial reads 500,000 units. The manufacturer recommends diluting 500,000 units with 5 ml of sterile water.
 
  How many milliliters will you prepare for a single dose if the patient weighs 150 pounds? 1. 4.3 mL
  2. 7.5 mL
  3. 68.2 mL
  4. 0.85 mL

Question 2

Order: Heparin sodium 670 units IV q.12h. The label on the vial reads 1000 units/mL. How many milliliters will you administer?
 
  1. 1.5 mL
  2. 0.67 mL
  3. 0.067
  4. 0.15

[canderson530]

Answer to Question 1

1

Global Rationale: 68.2 kg  25,000 units/kg = 1,705,000 units  4 = 426,250 units = 4.3 mL.

Answer to Question 2

2

Global Rationale: 670 units  1 mL/1000 units

[javeds]

Gracias!

[bulacsom]

TYSM