Which of the following is not a safety issue associated with MRI?
A. The presence of ferromagnetic objects in the body
B. An increase in body temperature
C. Loud noises emitted by the scanner
D. Reactions to contrast agents
E. None of the above
Answer: E
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Reduction of fluid losses at the kidneys due to the retention of Na+ is the action of
A) antidiuretic hormone. B) calcitonin. C) aldosterone. D) cortisone. E) oxytocin.
A phalanx in the hand is a(n) _______ bone.
A. short B. long C. irregular D. flat
Second-order neurons synapse with third-order neurons in the ________
A) spinal cord B) cerebral cortex C) dorsal root ganglion D) thalamus E) medulla oblongata
The highest level of exercise that can be performed without causing a significant change in blood pH is called the
A. Hering-Breuer reflex. B. aerobic threshold. C. anaerobic threshold. D. lactic acid tolerance level.