You walk into your dorm room and find your roommate in the midst of anxiety-induced hyperventilation. You're unable to calm her down, so you call an ambulance. When she arrives at the ER, which of the following is her likely diagnosis?
A. Metabolic alkalosis
B. Increased blood PCO2
C. Respiratory alkalosis
D. Respiratory acidosis
E. Metabolic acidosis
Answer: C
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The activity of metabolic pathways is influenced by the ratio of ________.
Fill in the blank(s) with the appropriate word(s).
The hormone that regulates water excretion by the kidneys
A) only increases water permeability in certain portions of the kidney tubules. B) decreases water permeability throughout the kidney tubules. C) increases water permeability throughout the kidney tubules. D) only decreases water permeability in certain portions of the kidney tubules.
On a normal ECG, a wave for repolarization of the atria is not recorded. Why?
a. The leads are not placed in a position to pick it up. b. No repolarization of the atria occurs normally. c. It occurs simultaneously with ventricular depolarization and is masked by the QRS complex. d. It does not travel through body fluids. e. It is too small to be picked up by external recording electrodes.
Which respiratory organ is a common passageway for both the respiratory and digestive system?
A) Nasal cavity B) Larynx C) Pharynx D) Bronchus