« previous next »

Author Question: What substance is known to inactivate cyclooxygenase, causing impairment of platelet function? a. ... (Read 66 times)

newbem

  • Hero Member
  • *****
  • Posts: 579
on: Jun 25, 2018
What substance is known to inactivate cyclooxygenase, causing impairment of platelet function?
 
  a. Aspirin
  b. Calcium
  c. Tylenol
  d. Vitamin K

Question 2

Two children in the same family have recurrent, chronic bruising in multiple sites, repeated long-lasting epistaxis, and minor bleeding after dental work. Which type of disorder is most likely?
 
  a. Localized, acquired, anatomic
  b. Localized, congenital, anatomic
  c. Generalized, congenital, systemic
  d. Generalized, acquired, systemic


mistyjohnson

  • Sr. Member
  • ****
  • Posts: 331
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: A
Aspirin inactivates the enzyme cyclooxygenase, blocking thromboxane A2 production and causing impairment of platelet function (called aspirin effect). Thromboxane A2 causes Ca+2 to be released and promotes platelet aggregation and vasoconstriction.

Answer to Question 2

ANS: C
Because the two affected children are in the same family, this is most likely congenital. Recurrent, chronic bruising in multiple sites, along with long-lasting epistaxis and minor bleeding after dental work, make this generalized and systemic rather than localized and anatomic.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

newbem

  • Hero Member
  • *****
  • Posts: 579
Reply #2 on: Jun 25, 2018
Thank you


mistyjohnson

  • Sr. Member
  • ****
  • Posts: 331
Reply #3 on: Jun 25, 2018
No problemo


« previous next »
 

Did you know?

Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Amphetamine poisoning can cause intravascular coagulation, circulatory collapse, rhabdomyolysis, ischemic colitis, acute psychosis, hyperthermia, respiratory distress syndrome, and pericarditis.

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Situations Causing Changes in Respiratory Rate Situations Causing Changes in Respiratory Rate
Common Antibiotics Causing Antibiotic Associated Diarrhea Common Antibiotics Causing Antibiotic Associated Diarrhea
How to use the quotient rule to find the derivative of a function How to use the quotient rule to find the derivative of a function
Dry Room Substance Removal Technique Dry Room Substance Removal Technique
How to combine and sketch transformations of a sinusoidal function (Question 2) (y=a*sin⁡b(x−c)+d) How to combine and sketch transformations of a sinusoidal function (Question 2) (y=a*sin⁡b(x−c)+d)
Exponential Function vs. Power Function Exponential Function vs. Power Function
Video: Autonomic Nervous System Animation

For a complete list of videos, visit our video library