A provider orders an ESR to be performed on a patient and describes the test to the patient. Which of the following statements made by the patient indicates an understanding of the teaching?
"This test measures my estrogen serum ratio after menopause."
"This test measures the fluctuation of serum protein."
"This test measures my hemoglobin levels."
"This test measures the distance my RBCs have dropped."
The Correct Answer is D
A. "This test measures my estrogen serum ratio after menopause." ESR stands for erythrocyte sedimentation rate, not estrogen serum ratio. This is an incorrect interpretation of the test.
B. "This test measures the fluctuation of serum protein." The ESR does not directly measure serum protein levels. It measures the rate at which red blood cells sediment in a period of one hour.
C. "This test measures my hemoglobin levels." Hemoglobin levels are measured by a hemoglobin test, not an ESR. This statement is incorrect.
D. "This test measures the distance my RBCs have dropped." This is the correct understanding. ESR measures the rate at which red blood cells settle at the bottom of a test tube over a specified period, indicating the distance the RBCs have dropped.
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Correct Answer is A
Explanation
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.
Correct Answer is C
Explanation
A. When cleaning instruments for sterilization: Hand sanitizer is not appropriate for cleaning or sterilizing instruments; proper cleaning and sterilization procedures must be followed.
B. When assisting with a minor office surgery: Hand sanitizer is not recommended for procedures requiring sterile technique; hand washing with soap and water is preferred.
C. When hands are not visibly soiled: Hand sanitizer can be used effectively when hands are not visibly dirty, as it helps reduce microbial load.
D. When transferring urine to a collection tube: Hand sanitizer is not suitable for this task; thorough hand washing is necessary to prevent contamination.