ATI TEAS (Test of Essential Academic Skills) Version 7MathematicsEasy
A nurse is monitoring a patient's fluid intake and output. The patient received 750 mL of IV fluids, drank 1.5 liters of water, and consumed 250 mL of juice. How many total milliliters (mL) of fluid intake did the patient have?
- A1000 mL
- B3000 mL
- C2500 mL
- D2000 mL
Show answer & explanationAnswer & explanation
Correct answer: C. 2500 mL
To find the total fluid intake in milliliters, all fluid amounts must be converted to milliliters before summing them. 1.5 liters is equivalent to 1500 mL. Then, add all the milliliter values together.
Why the other options are wrong
- A. This is incorrect; it likely omits one of the fluid sources or miscalculates a conversion.
- B. This is an overestimation, likely from an incorrect conversion or addition.
- D. This is incorrect; it likely miscalculates the 1.5 liters or omits a fluid source.
Mixed Unit Conversion & Summation
The process of converting multiple measurements from different units to a single, common unit, and then adding them together to find a total.
- Essential for accurate calculations in healthcare (e.g., fluid balance).
- Requires knowledge of conversion factors (e.g., 1 L = 1000 mL).
- All values must be in the same unit before summation.
Memory trick: Convert All to Milliliters, Then Add Up the Liters.