✔️ Med 116 Ch 7

* T helper cells

HIV attacks and destroys which element in the immune system?

* there is now a cure for HIV infection if detected early

Which of the following statements regarding HIV testing is not true?

* Helicobacter pyloric is believed to be the cause of all ulcers

Which of the following statements regarding Hpylori in ulcers are false?

* anti-Rh gamma globulin (RhoGAM)

Most cases of Hemolytic disease of the newborn can be prevented by administering ___________ to the Rh-negative mother.

* O

The ABO blood type of the universal donor is:

*direct contact

Transmission of the EBV causing infectious mononucleosis is transmitted primarily by?

* IgE

Which of the following classes of antibodies is involved in allergic reactions?

* Epstein-Barr virus (EBV)

Which of the following is a causative agent of infectious mononucleosis is?

*normal flora of phagocytosis

Which of the following nonspecific immunity mechanism involves the process of certain cells engulfing and destroying microorganisms or cellular debris?

* all are correct

Which of the following pairs is correct regarding the diagnosis of infectious mononucleosis?

* human chorionic gonadotropin (hCG)

Pregnancy testing is based upon the detection of?

*active immunity

Which of the following provides Long term protection against future infections due to production of antibodies that were formed naturally during an infection or artificially by vaccination?

* there is no preventive measures for hemolytic anemia

Which of the following statements is false?

* 15-25

the age group in which symptoms of EBV are most often displayed is?

* 85%, 15%

About ____ % of North Americans are Rh positive and _____ % are Rh negative.

* B cells

*Which of the lymphocytes differentiate into plasma cells and memory cells with subsequent production of antibodies?

* first morning sample

The first sample for pregnancy testing is obtained as?

* 50th and 80th

HCG levels peak between the _________ days of pregnancy