The aPTT is the most common procedure used to monitor the unfractionated heparin therapy. Which of the reagents used in the test provides the activation of the formation of the fibrin clot?
a. Thromboplastin/calcium mixture
b. Activated partial thromboplastin and calcium
c. Thrombin and fibrinogen
d. Normal pooled plasma and thrombin
Correct Answer: B
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All of the following guidelines should be followed when placing side markers EXCEPT:
A) place the side marker on the exposure field on the area of clinical interest. B) place the side marker directly on the image receptor or tabletop whenever possible in the face up position. C) for lateral positions, the side marker should indicate the side closest to the image receptor. D) for extremity images, a side marker should indicate which limb (R or L).
The roots of the maxillary second molar are not as __________________ as the first molar.
Fill in the blank(s) with the appropriate word(s).
Nerve fibers that are housed within the same nerve tract have all of the following things in common EXCEPT __________
a. origin b. hemisphere c. function d. termination
This bone is thin and flat and is also called the shoulder blade.
A. humerus B. scapula C. clavicle D. tibia E. ulna