A patient has been diagnosed with high blood pressure. A medication that can effectively serve to lower this patient's blood pressure is one that:
A) Increases the heart rate
B) Dilates the coronary arteries
C) Dilates the arteries
D) Constricts the veins
C) Dilates the arteries
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You respond to the scene of a vehicle accident and find a female patient on the ground. She is bleeding from her head, talking incomprehensibly, and trying to fight off assistance. You should:
A. instruct the patient to lie flat on the ground so you can perform a direct lift. B. use a three-man carry to get her onto your gurney. C. use the stair chair to get her to the ambulance. D. mechanically restrain the patient so that she cannot hurt herself or anyone else.
Which statement shows that the EMT understands the use of a tourniquet in controlling bleeding?
A) "A tourniquet should be applied tightly enough so that arterial blood flow distal to the tourniquet is completely stopped." B) "If the tourniquet appears to have stopped the bleeding, the EMT should loosen it slightly to allow a small amount of blood to perfuse the tissues." C) "If a blood pressure cuff is used as a tourniquet, the EMT should inflate it approximately 50 mmHg above the patient's systolic blood pressure." D) "Since arteries run close to the body's surface in a joint, the best place to apply a tourniquet is over the joint just above the site of hemorrhage."
Triangular signs are ________.
A. prohibitions B. informational C. warnings D. emergency
When the body is in a shock state, which hormone released from the adrenal glands stimulates primarily alpha-1 and beta-1 receptors, but has no effects on beta-2 receptor sites?
A) Biepinephrine B) Pseudoepinephrine C) Coepinephrine D) Norepinephrine