A paramedic is treating a patient who has a flail chest secondary to an assault. The patient has shallow breathing because of the extreme pain of the injury. The acid-base derangement expected from this injury is:
a. Metabolic acidosis
b. Metabolic alkalosis
c. Respiratory acidosis
d. Respiratory alkalosis
Answer: c. Respiratory acidosis
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a) uric acid b) glucose c) urea d) creatinine
Denervated muscle fibers become progressively smaller and their content of actin and myosin decreases
Indicate whether the statement is true or false
What capillaries come off of the efferent arterioles associated with cortical nephrons?
A) glomerulus B) vasa recta C) peritubular D) arcuate E) lobular
Binding of acetylcholine with its receptor on muscle cells causes
A) opening of a ligand-gated sodium channel. B) a gap in the cell membrane for calcium diffusion. C) vesicular release of sodium ions. D) opening of a voltage-gated calcium channel.