In a patient with carotid sinus hypersensitivity, which of the following actions should not be performed by or on a patient?
A) cervical plexus nerve block
B) carotid endarterectomy
C) taking a carotid pulse
D) Valsalva maneuver
E) swallowing reflex maneuver
Ans: C
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Answer the following statement true (T) or false (F)
A motor unit refers to
a. a single motor neuron plus all of the muscle fibers it innervates b. a single muscle fiber plus all of the motor neurons that innervate it c. all of the motor neurons supplying a single muscle d. a pair of antagonistic muscles e. a sheet of smooth muscle cells connected by gap junctions
All of the following are cell types of connective tissue proper EXCEPT ________
A) macrophages B) fibroblasts C) erythrocytes D) adipocytes
Which class of immunoglobulin provides passive immunity to the newborn?
A. IgD B. IgA C. IgM D. IgE E. IgG