A radiographic image with many shades of gray is said to have low contrast
Indicate whether the statement is true or false
True. Low contrast describes a radiograph in which the density differences between adjacent areas are small. The contrast is low and very gradual because there are many shades of gray
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When administering aspirin to a patient with chest discomfort that is suggestive of a heart attack, the EMT recognizes that this medication will benefit the patient by:
A) Breaking up the blood clot that is occluding the coronary artery B) Treating the headache that may occur when nitroglycerin is administered C) Decreasing the ability of the platelets in the blood to form clots D) Decreasing the chest pain caused by the possible heart attack
A 27-year-old pregnant woman was the restrained driver of a vehicle that hit the guardrail at a high rate of speed. She sustained a large laceration to the upper thigh and has lost a significant amount of blood. Vital signs are: heart rate 102, blood pressure 118/78 mmHg, respirations 18, and her skin is pale and clammy. Which of the following BEST explains this patient's presentation?
A) Maternal blood volume increases during pregnancy, allowing vital signs to remain normal despite significant blood loss.
B) Fetal oxygen demand increases after trauma, causing maternal blood pressure and heart rate to increase immediately after injury.
C) Maternal blood volume decreases during pregnancy, amplifying the effects of epinephrine and allowing for the maintenance of blood pressure.
D) Maternal vital signs remain normal following trauma to ensure the survival of the developing fetus.
The ____ secretes calcitonin.
A. thyroid B. parathyroid C. adrenal D. pancreas E. thymus
Manually calculate the IV flow rate using the formula method. Administer set is 60 gtt / mL. The flow rate is 125 mL / hr.What is the drop factor?How many drops per minute should be administered?
Fill in the blank(s) with the appropriate word(s).