A medical assistant is escorting a patient who has presbyopia. Which of the following actions should the assistant take?
Offer the patient their elbow for guidance.
Take the patient's hand.
Lead the patient by their arm.
Guide the patient by holding their waist.
The Correct Answer is A
A. Offer the patient their elbow for guidance: Offering the elbow is a common and safe method of guiding patients with visual impairments, including presbyopia, because it allows the patient to follow the assistant's movements more easily.
B. Take the patient's hand. Taking the patient's hand might make the patient feel less secure and can lead to an imbalance. It is less effective than offering the elbow.
C. Lead the patient by their arm: Leading the patient by their arm can be uncomfortable and does not provide the same level of control as offering the elbow.
D. Guide the patient by holding their waist: Holding the waist is inappropriate as it invades personal space and might make the patient uncomfortable.
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Correct Answer is A
Explanation
A. Near visual acuity: Hyperopia, or farsightedness, affects the ability to see objects up close. Testing near visual acuity assesses how well a patient can see objects at a close range.
B. Ishihara: The Ishihara test is used for detecting color vision deficiencies, not hyperopia.
C. Snellen chart: The Snellen chart tests distance vision and is more useful for assessing nearsightedness (myopia) rather than farsightedness (hyperopia).
D. Tonometry: Tonometry measures intraocular pressure to assess for glaucoma, not hyperopia.
Correct Answer is D
Explanation
A. Yellow: The yellow tube, used for blood cultures, is typically collected first to prevent contamination.
B. Light blue: The light blue tube is used for coagulation studies and should be collected before tubes containing additives that could interfere with coagulation tests.
C. Red: The red tube, which may contain no additives or a clot activator, is usually collected after the light blue tube.
D. Gray: The gray tube is used for glucose testing and should be filled last as it contains additives that could interfere with other tests if collected earlier.