Which of the following best describes the correct collection and ...

[Mollykgkg]

Which of the following best describes the correct collection and handling conditions for a blood ammonia measurement?
 
  A) Fasting patient, draw clot tube, separate serum immediately, test immediately
  B) Draw sodium heparin tube, place in ice bath immediately, separate cells and plasma in refrigerated centrifuge, immediately remove plasma and freeze if analytical testing is delayed
  C) Draw clot tube, separate serum from clot in refrigerated centrifuge, protect from light, freeze if not tested immediately
  D) Fasting patient, draw lithium heparin tube, place tube on an ice pack, centrifuge at 20 C, test immediately

Question 2

True or false? Indirect urea methods begin with the hydrolysis of urea to ammonia.
 
  A) True
  B) False

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Answer to Question 1

Ans: B

Answer to Question 2

Ans: A

[Mollykgkg]

Thanks for the timely response, appreciate it

[kthug]

Great answer, keep it coming