ATI TEAS (Test of Essential Academic Skills) Version 7MathematicsEasy
A patient's vital signs are recorded every 15 minutes. If the last recording was at 10:40 AM, what time will the next three vital sign recordings be?
- A11:00 AM, 11:15 AM, 11:30 AM
- B11:05 AM, 11:20 AM, 11:35 AM
- C10:55 AM, 11:05 AM, 11:20 AM
- D10:55 AM, 11:10 AM, 11:25 AM
Show answer & explanationAnswer & explanation
Correct answer: D. 10:55 AM, 11:10 AM, 11:25 AM
Starting at 10:40 AM, add 15 minutes for each subsequent recording. 10:40 AM + 15 minutes = 10:55 AM. 10:55 AM + 15 minutes = 11:10 AM. 11:10 AM + 15 minutes = 11:25 AM.
Why the other options are wrong
- A. Incorrect; the first time is off by 5 minutes, leading to subsequent errors.
- B. Incorrect; all times are off by 10 minutes from the correct sequence.
- C. Incorrect; the second and third times are miscalculated.
Time Interval Calculation
Calculating future times by adding a fixed interval to a given start time, often crossing hour boundaries.
- Remember that there are 60 minutes in an hour.
- Adding minutes can carry over to the next hour.
- Essential for scheduling and monitoring in healthcare.
Memory trick: Add the interval, watch the hour roll!