Author Question: The urea solubility test is used to detect deficiencies in which factor? a. Fibrinogen b. ... (Read 87 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?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

For a complete list of videos, visit our video library