A patient with respiratory splinting:
A) is often tachypneic with deep breathing.
B) is holding his or her arm against the chest.
C) is breathing shallowly to alleviate chest pain.
D) has an increased tidal volume due to a chest injury.
Answer: C) is breathing shallowly to alleviate chest pain.
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In the postabsorptive state, the central nervous system uses which of the following as its PRIMARY source of energy?
a. fatty acids b. amino acids c. glucose d. glycerol e. ketones
Endocrine glands
A. secrete hormones directly into the bloodstream. B. help maintain homeostasis. C. are ductless glands. D. are the organs of the endocrine system. E. All of the choices are correct.
The primary drive to breathe is elicited by which of the following?
A. reduced PCO2 B. increased PCO2 C. increased PO2 D. reduced PO2
Two chambers containing aqueous solutions are separated by a membrane. Chamber 1 contains 10 mM Na+ while chamber 2 contains 1 mM Na+. The membrane potential (1 relative to 2) in this scenario
a. is greater than 0 mV. b. is equal to 0 mV. c. is less than 0 mV. d. cannot be determined based on the information given.