Author Question: Which type of VWD gives a positive response to low-dose ristocetin-induced platelet aggregation? ... (Read 63 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
Which type of VWD gives a positive response to low-dose ristocetin-induced platelet aggregation?
 
  a. 1
  b. 2A
  c. 2B
  d. 2N

Question 2

All of the following can mask a deficiency of VWF and thus of type 1 VWD except:
 
  a. Type A blood group
  b. Pregnancy
  c. Acute stress
  d. Type AB blood group



aliotak

  • Sr. Member
  • ****
  • Posts: 326
Answer to Question 1

ANS: C
The low-dose ristocetin-induced platelet aggregometry identifies VWD, subtype 2B.

Answer to Question 2

ANS: A
The concentration of VWF is low in VWD, type 1. VWF is an acute phase reactant and is thus elevated in acute stress. Higher estrogen levels during pregnancy also elevate VWF. Individuals with type AB blood type have higher levels of VWF. All these can thus mask VWD.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

There are 60,000 miles of blood vessels in every adult human.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.

Did you know?

According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.

For a complete list of videos, visit our video library