The nurse needs to prepare 500 mL of 1/3 strength Ensure solution ...

[a0266361136]

The nurse needs to prepare 500 mL of 1/3 strength Ensure solution for a tube feeding. How many milliliters of full-strength Ensure will the nurse use to make this solution?
 
  1. 126 mL
  2. 138 mL
  3. 149 mL
  4. 167 mL

Question 2

The nurse needs to prepare 250 mL of 2/3 strength hydrogen peroxide. How many mL of sterile normal saline will the nurse use in this solution?
 
  1. 62.5 mL
  2. 75 mL
  3. 125 mL
  4. 250.5 mL

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Answer to Question 1

4

Rationale 1: The nurse would use the equation 500 mL x 1/3 = 500/3 = 166.67 or 167 mL of full-strength Ensure to make the solution.

Answer to Question 2

1

Rationale 1: The nurse should use the equation 250 mL (3/4 strength) = mL full strength hydrogen peroxide. When solving the equation, 250 x 3/4 = 187.50 mL of hydrogen peroxide. Then the nurse would subtract the total amount of hydrogen peroxide from the total amount of solution or 250 mL  187.5 mL = 62.50 mL. The nurse would use 62.5 mL of sterile normal saline to make this solution.

[a0266361136]

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