Multiple Choice
In the context of cell signaling, which of the following best describes the role of a ligand when it binds to a cell surface receptor?
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10. Cell Signaling
Introduction to Cell Signaling
Multiple Choice
When assessing for arm drift in a patient with a suspected stroke, you should:
A
Ask the patient to close their eyes and hold both arms straight out in front of them, palms up, and observe for downward movement of one arm.
B
Have the patient touch their nose with alternating hands as quickly as possible.
C
Ask the patient to shrug their shoulders against resistance.
D
Ask the patient to squeeze your fingers with both hands and compare grip strength.
Verified step by step guidance1
Understand the context: The problem is related to assessing arm drift in a patient with a suspected stroke. Arm drift is a neurological test used to evaluate motor function and coordination.
Step 1: Recognize that arm drift assessment involves observing the patient's ability to hold their arms steady. This test is part of a neurological examination to detect potential signs of stroke or other motor impairments.
Step 2: Ask the patient to close their eyes. Closing the eyes removes visual feedback, making it easier to detect subtle motor deficits or weakness in one arm.
Step 3: Instruct the patient to hold both arms straight out in front of them, palms up. This position helps to identify any downward movement or weakness in one arm, which could indicate neurological impairment.
Step 4: Observe for downward movement of one arm. If one arm drifts downward, it may suggest a motor deficit or weakness, which is a common sign of stroke.
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