Immunoglobulin is a blood protein that acts as a/an:
A) antibody.
B) embolus.
C) allergy.
D) antigen.
A
Explanation:
A) Correct.
B) An embolus is a blood clot that is moving.
C) An allergy is hypersensitivity to a substance that is usually harmless.
D) An antigen is a foreign substance that stimulates the immune response.
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Answer the following statements true (T) or false (F)
1. Smoking delays menopause by approximately five years. 2. Nicotine raises blood levels of low-density lipoproteins. 3. Smoking reduces the effectiveness of some medications, particularly anti-anxiety drugs and penicillin. 4. Those who use cigars and smokeless tobacco products have a higher risk for cancers of the mouth, throat, esophagus, and stomach. 5. Within 10 to 15 years of quitting smoking, a person’s life expectancy reaches that of a person who never smoked.
CD4 binds to
A. TCR? B. TCR? C. MHC class I D. MHC class II E. CD8
laparoscopy : Procedure to evaluate the external appearance of the uterus and other organs of the pelvic cavity by means of a small incision through the lower abdominal wall and a(n) __________________
Fill in the missing word in the definition for the key term.
A 76-year-old client is being treated for a painful linear rash appearing on one side of her body. The physician prescribes oral valacyclovir. Which of the following is TRUE about this treatment?
a. It should be started within 72 hours of rash onset to be most effective. b. It is an antibacterial medication. c. It is effective in preventing the rash from spreading if applied within 48 hours of rash onset. d. It prevents infections from occurring in the body.