« previous next »

Author Question: Which type of VWD gives a positive response to low-dose ristocetin-induced platelet aggregation? ... (Read 71 times)

cartlidgeashley

  • Hero Member
  • *****
  • Posts: 572
on: Jun 25, 2018
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
Reply #1 on: Jun 25, 2018
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
« previous next »
 

Did you know?

Everyone has one nostril that is larger than the other.

Did you know?

Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Did you know?

The cure for trichomoniasis is easy as long as the patient does not drink alcoholic beverages for 24 hours. Just a single dose of medication is needed to rid the body of the disease. However, without proper precautions, an individual may contract the disease repeatedly. In fact, most people develop trichomoniasis again within three months of their last treatment.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Did you know?

On average, someone in the United States has a stroke about every 40 seconds. This is about 795,000 people per year.

Steps in the humoral and cell-mediated immune response Steps in the humoral and cell-mediated immune response
Kitagawa Utamaro, The Fickle Type, from the series Ten Physiognomies of Women. Kitagawa Utamaro, The Fickle Type, from the series Ten Physiognomies of Women.
A black impact socket. Always use an impact-type socket whenever using an impact wrench to avoid ... A black impact socket. Always use an impact-type socket whenever using an impact wrench to avoid ...
The peptidoglycan layer of Gram-positive bacteria The peptidoglycan layer of Gram-positive bacteria
RNA-induced transcriptional silencing (RITS) in yeast RNA-induced transcriptional silencing (RITS) in yeast
Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe Immune-to-brain signaling occurs in response to infection, injury, and inflammation that occur in pe
Video: Digestive System Animation

For a complete list of videos, visit our video library