Pacemakers that are implanted most often in a patient's upper chest and are left in place are ________ pacemakers.
A. transvenous
B. substernal
C. temporary
D. permanent
Answer: D
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After three days of cell divisions following fertilization, the cells are in a solid ball. What is this stage of development called?
A) Morula B) Blastocysts C) Trophoblast D) Blastomere
In what type of hemolytic anemia does damage to the endothelial lining of the small vessels result in deposits of fibrin with the vessels?
a. Exercise-induced hemoglobinuria b. The type associated with infectious agents c. The type associated with animal venoms d. Microangiopathic hemolytic anemia
You are dispatched to a structural fire in which a 32-year-old man has been burned in a steam blast. Upon assessment, you note blisters to the anterior chest and circumferential burns to both lower extremities. Using the rules of nines, what percentage of burn does this patient have?
A) 54 percent B) 45 percent C) 36 percent D) 27 percent
Which of the following local anesthetics consistently produces vasoconstriction?
a. lidocaine b. mepivicaine c. tetracaine d. cocaine