CNA Certification (Written Exam)Basic Nursing SkillsEasy
A nurse aide is assisting a resident with a liquid diet. The resident consumed two 8-ounce cups of broth and one 4-ounce cup of gelatin. What is the total intake in milliliters (mL)?
- A480 mL
- B360 mL
- C600 mL
- D240 mL
Show answer & explanationAnswer & explanation
Correct answer: C. 600 mL
First, convert ounces to milliliters (1 oz = 30 mL). Two 8-ounce cups of broth = 16 oz * 30 mL/oz = 480 mL. One 4-ounce cup of gelatin = 4 oz * 30 mL/oz = 120 mL. Total intake = 480 mL + 120 mL = 600 mL.
Why the other options are wrong
- A. Incorrect calculation; accounts for only the broth, or an incorrect conversion.
- B. Incorrect calculation; only accounts for a portion of the intake.
- D. Incorrect calculation; only accounts for a portion of the intake.
Fluid Volume Conversion (oz to mL)
The standard conversion of fluid ounces to milliliters, where 1 fluid ounce (oz) is equivalent to 30 milliliters (mL).
- 1 oz = 30 mL (standard for I&O)
- Essential for accurate intake/output charting
- Applies to all liquid intake (water, juice, soup, gelatin, ice cream)
- Helps monitor fluid balance
Memory trick: Ounces to mL: Just Multiply by 30, then Add!