Before a CT scan, the patient should have nothing by mouth ________ hours before the X-ray if contrast media is used.
A. four
B. six
C. eight
D. 10
Answer: A
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The Beer-Lambert Law (also called "Beer's Law") defines the relationship between absorbance and what three other factors?
A) Concentration, molar absorptivity, and path length B) Concentration, photon number, and wavelength C) Molar absorptivity, path length, and photon number D) Path length, photon number, and wavelength
The EMT would use the sterile scissors found in the OB kit to cut which of the following?
A) Towels to create a sterile field B) Umbilical cord C) Patient's clothing D) Amniotic sac (if not ruptured)
A special concern when calculating length of stay is to include the day of discharge.
Answer the following statement true (T) or false (F)
A 62-year-old female with severe kyphosis has fallen and hit the back of her head, which is oozing blood from a small laceration. Family members state that she suddenly complained of a "very bad headache" before collapsing to the kitchen floor. She has snoring respirations and cyanosis in the extremities. Of the following interventions, which one should you do first?
A) Apply a cervical collar. B) Use a jaw-thrust maneuver. C) Start positive pressure ventilation. D) Cover the laceration.