Author Question: The primary function of platelets is to: a. Defend the body against bacterial invasion. b. ... (Read 68 times)

stephzh

  • Hero Member
  • *****
  • Posts: 556
The primary function of platelets is to:
 
  a. Defend the body against bacterial invasion.
  b. Carry oxygen to tissues.
  c. Facilitate blood clotting.
  d. Regulate acid-base balance.

Question 2

Which laboratory specimens must be treated with standard (universal) precautions?
 
  a. Only those labeled with a biohazard sticker
  b. Only those from patients known to have human immunodeficiency virus (HIV) or hepatitis
  c. All human blood and body fluids
  d. All specimens submitted for bacterial culture



jazzlynnnnn

  • Sr. Member
  • ****
  • Posts: 335
Answer to Question 1

ANS: C
Whenever disruption occurs to a blood vessel so that bleeding results, platelets respond initially to stop the bleeding in small vessels; they also play an integral role in facilitating the formation of a blood clot. White cells defend against bacterial invasion; red cells (i.e., hemoglobin) carry oxygen to tissues; and a complex interaction of plasma electrolytes, proteins, and carbon dioxide participates in acid-base balance.

Answer to Question 2

ANS: C
All human specimens, whether they are blood, urine, any body fluid, or a specimen submitted for culture, should be treated identically using universal standard precautions. Even a patient who professes to feel well can harbor an infectious agent that has the potential for transmission.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Cyanide works by making the human body unable to use oxygen.

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?

People with alcoholism are at a much greater risk of malnutrition than are other people and usually exhibit low levels of most vitamins (especially folic acid). This is because alcohol often takes the place of 50% of their daily intake of calories, with little nutritional value contained in it.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

For a complete list of videos, visit our video library