Which of the following instructions should a medical assistant give to a patient who is scheduled for a GTT?
"Avoid alcohol for 48 hours prior to the test."
"Do not eat for 8 hours prior to the test."
"Limit physical exertion for 24 hours prior to the test."
"Eat a high carbohydrate meal 3 hours prior to the test."
The Correct Answer is B
A. "Avoid alcohol for 48 hours prior to the test.": While avoiding alcohol may be generally recommended for some tests, fasting is the primary requirement for a glucose tolerance test (GTT).
B. "Do not eat for 8 hours prior to the test.": A GTT typically requires fasting for 8-12 hours to accurately measure glucose levels.
C. "Limit physical exertion for 24 hours prior to the test.": Physical exertion is not typically a specific concern for a GTT, but fasting is essential.
D. "Eat a high carbohydrate meal 3 hours prior to the test.": A high carbohydrate meal is not required; fasting is necessary before the test.
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Correct Answer is B
Explanation
A. Tilt the head back slightly: Tilting the head back slightly is not the standard technique for administering ear drops to adolescents and adults.
B. Gently pull the pinna up and back: Pulling the pinna (outer ear) up and back helps to straighten the ear canal in adolescents and adults, allowing the drops to reach the eardrum more effectively.
C. Tilt the head slightly forward: Tilting the head slightly forward is not the correct position for administering ear drops.
D. Gently pull the pinna down and back: Pulling the pinna down and back is used for children under 3 years old, not for older children or adults.
Correct Answer is C
Explanation
A. Stand 25 feet from the Snellen chart. The standard distance for testing visual acuity with a Snellen chart is 20 feet, not 25 feet. Testing at 25 feet would not provide accurate results.
B. Allow them to squint if necessary. Squinting can artificially improve vision, leading to inaccurate results. The patient should be instructed to avoid squinting during the test.
C. Keep both eyes open while using the occluder. The patient should use the occluder to cover one eye but keep both eyes open during the test. This ensures that each eye is tested individually without any pressure or distortion from closing the other eye.
D. Start with the bottom line of the Snellen chart and work upward. The patient should start from the top of the Snellen chart and work downward. Starting from the bottom would likely result in frustration and inaccurate assessment as the lines become increasingly difficult.