Continuous use of intranasal cocaine causes ischemia and necrosis as cocaine is a potent:
A. vasoconstrictor.
B. vasodilator.
C. analgesic.
D. antihistamine.
A
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Immediately after giving a prehospital care report to the nurse in the emergency department, dispatch informs you that there are no more ambulances available and you must immediately leave the hospital to cover another portion of the county. Since your service uses a computerized documentation system and there is no time to complete your report, your best course of action should be to:
A) give a verbal report to the ED physician. B) repeat your assessment findings and treatment to the nurse. C) complete an abbreviated transfer-of-care form. D) leave and return to complete the report as soon as possible.
After blood has entered the right ventricle, it is next moved into the:
A) left ventricle. B) pulmonary artery. C) left atrium. D) aorta.
A patient with a low blood sugar is unresponsive with snoring respirations. His breathing is labored and his pulse is rapid and weak. Examination of the skin reveals it to be cool and diaphoretic. Your partner informs you of the following vital signs: pulse, 120; respirations, 18 breaths/min; blood pressure, 132/60 mmHg; and SpO2 at 84% on room air. Which action would you perform first?
A) Administer oral glucose B) Perform a head-tilt, chin-lift maneuver C) Provide high-concentration oxygen D) Start positive pressure ventilation
Saline, rather than fresh water, is used to prepare smears of bacteria for Gram stain because
A) saline has a lower osmotic pressure than the organism and the organism cell swells. B) fresh water affects the Gram stain reaction and causes inaccurate results. C) fresh water rushes into the cell due to its low solute concentration and the cell swells. D) saline has a high solute concentration causing water to flow out of the cell and it shrinks.