Why is vitamin K necessary for some coagulation proteins to become functional?
a. Vitamin K activates coagulation zymogens.
b. Vitamin K binds coagulation factors to a phospholipid surface.
c. Vitamin K combines with VWF in the circulation.
d. Vitamin K is required for gamma-carboxylation of glutamic acid residues.
Correct Answer: D
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Your patient is a 17-year-old male baseball player found pulseless and apneic after being struck in the chest by a baseball 6 minutes ago. He is surrounded by other players and staff but no one is providing care. You should:
A) place him on a backboard. B) begin chest compressions. C) elevate the patient's legs. D) attach the AED and analyze.
A phlebotomist walks into a patient's room to collect a blood specimen for hemoglobin and hematocrit. The patient has a full cast on both arms extending to the wrist. What should the phlebotomist do?
a. come back later b. collect the blood from the ankle c. perform a fingerstick and document the collection site d. page the doctor to double check the order
Which of the following BEST defines "pneumothorax"?
A. A bacterial infection that causes pneumonia, sinusitis, ear infections, peritonitis, and many other pathologies B. Fibrous bands that form between organs and/or tissues within the abdominal cavity, which most commonly after an injury or during postoperative recovery C. An intestinal condition in which part of the small intestine folds in on itself, thereby creating a telescope-like compression as the walls of the small intestine rub together D. An abnormal presence of air or gas within the pleural cavity, which can cause pain, difficult breathing, or lung collapse
The bones of _______________ joints are covered with hyaline cartilage and are held together by a fibrous joint capsule.
Fill in the blank(s) with the appropriate word(s).