Using which principle does plasma become more opaque as a clot ...

[ahriuashd]

Using which principle does plasma become more opaque as a clot forms and the amount of light being detected decreases?
 
  a. Photo-optical
  b. Mechanical
  c. Chromogenic
  d. Immunologic

Question 2

Diagnostica Stago coagulation instruments are based on what clot detection principle?
 
  a. Photo-optical
  b. Mechanical
  c. Chromogenic
  d. Nephelometric

[rosiehomeworddo]

Answer to Question 1

ANS: A
A light source of specified wavelength is made to pass through plasma; some light normally gets through to the detector. As a fibrin clot forms, the amount of light detected decreases. When light decreases to a predetermined deflection from the baseline, the timer stops, indicating clot formation.

Answer to Question 2

ANS: B
Diagnostica Stago coagulation instruments use a mechanical end-point clot detection principle. These instruments magnetically monitor the movement of a steel ball within plasma. As the clot forms, the sensor detects the slowing of the ball.

[ahriuashd]

Thank you

[rosiehomeworddo]

Happy to help you