After assisting a patient with the use of an epinephrine auto-injector, you note that the patient's blood pressure has improved. As a knowledgeable EMT, you realize that this effect occurred due to epinephrine's ability to:
A) Relax the smooth muscle of the blood vessels
B) Constrict blood vessels
C) Increase the number of circulating red blood cells
D) Increase the oxygen-carrying capacity of the red blood cells
B) Constrict blood vessels
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About ________ people have hernia repairs each year
a. 750 b. 7,500 c. 75,000 d. 750,000
An infant can easily become dehydrated and develop water and electrolyte imbalance because:
a. infants tend to perspire a great deal. b. infants' urine is highly concentrated until the kidneys mature. c. infants' stool has a large amount of water in it. d. infants' urine is a relatively dilute fluid with a specific gravity that rarely exceeds 1.0.
Your patient is a 2-year-old girl. In order to determine the size of equipment to use, you must calculate:
A. her height in inches. B. her weight in kilograms. C. her exact age in weeks. D. her height in centimeters.
Which of the following are formed elements in the blood? 1. Leukocytes 2. Erythrocytes 3. Thrombocytes 4. Electrolytes
a. 1 and 2 only b. 1, 2, and 3 only c. 2, 3, and 4 only d. 1, 2, and 4 only