A medical assistant is preparing to place lower-limb electrodes on a patient who has a left above the knee amputation. Which of the following actions should the assistant take when placing the lower-limb electrodes?

A. "Clean the perineal area from back to front.": For females, cleaning should be done from front to back to avoid contamination from fecal matter. For males, cleaning should be done around the urethral opening.
B. "Void a small amount into the toilet before voiding into the cup.": This helps to flush out any contaminants from the urethra, ensuring that the urine collected in the cup is as clean as possible.
C. "Urinate directly into the container with preservative.": Urinating directly into a container with preservative can contaminate the sample and is not recommended for a clean catch specimen.
D. "Collect all urine from start to finish.": The clean catch method specifically involves discarding the initial stream of urine and collecting the midstream to avoid contaminants.

A. Stress test: A stress test, or exercise stress test, involves monitoring the heart's activity with an EKG while the patient exercises on a treadmill or stationary bike. This test assesses how the heart performs under physical stress.
B. Holter monitor: A Holter monitor is a portable EKG device worn by the patient for 24-48 hours to continuously record heart activity in their daily life, not during exercise.
C. Echocardiogram: An echocardiogram uses ultrasound to visualize the heart's structures and is not performed while the patient is exercising.
D. Cardiac event monitor: A cardiac event monitor is used to record heart activity when the patient experiences symptoms, typically worn for weeks to months, and is not specifically for exercise testing.