Which of the following results in blockage of vasoconstriction and aldosterone secretion?
A) diuretics
B) calcium channel blockers
C) angiotensin II receptor blockers
D) ACE inhibitors
C) angiotensin II receptor blockers
Angiotensin II receptor blockers result in blockage of vasoconstriction and aldosterone secretion stimulated by angiotensin II. They inhibit the binding of angiotensin II to the angiotensin I receptor in vascular smooth muscle.
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You arrive on the scene of a motor vehicle collision and are presented with a patient who complains of chest pain after striking his chest on the steering wheel. On-scene Emergency Medical Responders are maintaining cervical spine motion restriction manually. The patient is alert and oriented and has a patent airway. His respirations are 24 breaths/min with good chest rise and fall, and his skin is warm and dry. He describes some shortness of breath, his heart rate is 96 beats/min, and his SpO2 is 92% on room air. At this time you should:
A) Apply a cervical collar B) Provide oxygen via nasal cannula at 2-4 liters per minute C) Obtain a blood pressure and medical history D) Start positive pressure ventilation
The CDC recommends using the BMI growth chart for which of the following age categories?
What will be an ideal response?
Vibrio microorganisms are _______ shaped
a. round b. "S" c. rod d. curve
As the iris of the eye contracts and relaxes, an opening at its center, called the _______________, grows larger or smaller, regulating the amount of light that enters the eye.
Fill in the blank(s) with the appropriate word(s).