Author Question: The urea solubility test is used to detect deficiencies in which factor? a. Fibrinogen b. ... (Read 86 times)

berenicecastro

  • Hero Member
  • *****
  • Posts: 581
The urea solubility test is used to detect deficiencies in which factor?
 
  a. Fibrinogen
  b. Factor V
  c. Factor XII
  d. Factor XIII

Question 2

In what is a patient with the following coagulation test results most likely deficient?
 
  Test Result Reference Range
  Prothrombin time (PT) 17 seconds 11-15 seconds
  Partial thromboplastin time (PTT) 31 seconds 25-37 seconds
  Thrombin time (TT) 16 seconds 15-21 seconds
 
  a. Fibrinogen
  b. VII
  c. VIII
  d. X



Alyson.hiatt@yahoo.com

  • Sr. Member
  • ****
  • Posts: 354
Answer to Question 1

ANS: D
The plasma from patients with a factor XIII deficiency forms weak clots that dissolve within 2 hours when suspended in a 5M urea solution because the clot has not been cross-linked by XIIIa.

Answer to Question 2

ANS: B
Factor VII deficiency shows a prolonged PT with a normal PTT result. A deficiency of fibrinogen ideally should prolong the PT, PTT, and TT. Factor VIII deficiency prolongs the PTT but not the PT and TT, whereas a factor X deficiency should prolong both the PT and PTT but not the TT.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

The average adult has about 21 square feet of skin.

Did you know?

A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

For a complete list of videos, visit our video library