What protein does heparin work with to inhibit coagulation?
a. Protein S
b. Antithrombin
c. Vitamin K
d. Factor VII
ANS: B
Heparin binds to antithrombin, thus bringing thrombin in close proximity to antithrombin. It also changes the configuration of antithrombin so that it can effectively bind thrombin. The thrombin-antithrombin complex renders thrombin inactive; the complex is taken to the liver and cleared.
You might also like to view...
Which of the following principles is used by the ultrasonic nebulizer to produce aerosol droplets?
a. Evaporative cooling b. Mechanical baffling c. Fractional distillation d. High-frequency vibrations
Read the prescription and select the correct answer for each question that follows.
How many tablets should the patient take in one month?
A. 30 B. 40 C. 50 D. 60
When changing from an AP chest projection on an average size patient (22 cm) at 4 mAs at 125 kVp to an AP chest projection on a thick patient measuring 34 cm, what is the new mAs required?
A. 2 mAs B. 8 mAs C. 16 mAs D. 32 mAs
The ultimate goal of research is to discover the ____________________.
Fill in the blank(s) with the appropriate word(s).