Cocaine dilates the coronary arteries and increases myocardial blood flow
a. true
b. false
b. false
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You're an off-duty EMT who encounters a patient sitting behind the wheel of a vehicle that ran off the road along an isolated county road. It appears the patient was unrestrained, or not wearing a seat belt, and struck the steering wheel with his chest. On assessment, you notice a paradoxical motion to the patient's chest on inspiration and expiration. When you radio for dispatch of an ambulance,
which of the following pieces of information would you be sure to include? A) The patient is showing signs of an open chest injury. B) The patient may have a flail chest. C) The patient may have an abdominal evisceration. D) The patient is showing signs of abdominal bleeding.
Which of the following is the normal response to an increase in hydrogen ions in the bloodstream?
A) The phrenic nerve depresses the movement of the diaphragm. B) Chemoreceptors sense an increase in CO2, and breathing increases. C) The kidneys allow more bicarbonate to be excreted in the urine. D) The pH of then the cerebral spinal fluid increases.
Which of the following is a useful clinical laboratory test for bile salt malabsorption?
A. Measurement of 1, 25-dihydroxycholecalciferol B. Measurement of 7?-hydroxy-4-cholesten-3-one C. Measurement of cholesterol D. Measurement of cytotoxin-associated gene A (CagA)
Which organelle is responsible for detoxification?
a. Cytoplasmic membrane b. Endoplasmic reticulum c. Golgi apparatus d. Ribosome