Nokea
Which step is the third step in the sequence of a plasmapheresis procedure?
- A. Removal of whole blood in one arm
- B. Circulation of blood through cell separator
- C. Remainder of plasma returned through vein in opposite arm
- D. Separation of plasma and its cellular components
- E. Replacement of plasma with lactated Ringer
- F. Removal of undesirable components
Correct Answer: D
Rationale: The whole blood is drawn out of one arm; circulated through a cell separator; plasma is separated with its cellular components; the undesirable components are removed; the remainder of plasma is returned through a vein in the opposite arm; and the lost plasma is replaced with lactated Ringer, normal saline, frozen plasma, or albumin.
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A type IV latex allergy is characterized by ___
Correct Answer: contact dermatitis
Rationale: Type IV latex allergy is that of a contact dermatitis.
What is B-cell proliferation dependent on?
- A. Presence of NK (natural killer) cells
- B. Complement system
- C. Antigen stimulation
- D. Lymphokines
Correct Answer: C
Rationale: Antigen stimulation is the sole focus of B-cell proliferation.
The nurse explains that when the patient received tetanus antitoxin with the antibodies in it, the patient received which type of immunity?
- A. active natural
- B. passive natural
- C. active artificial
- D. passive artificial
Correct Answer: D
Rationale: When a person receives an inoculation of antibodies from another source, as with tetanus antitoxin, it is considered a passive artificial immunity.
The process of immunity through a controlled exposure to an attenuated organism to stimulate the production of antibodies is ___
Correct Answer: immunization
Rationale: The process of immunity through a controlled exposure to an attenuated organism to stimulate the production of antibodies is immunization.
Which line of defense provides the body with innate immunity?
- A. Skin and mucous membranes
- B. Lungs
- C. Heart
- D. Tears and saliva
- E. Natural intestinal and vaginal flora
- F. Stomach acid
Correct Answer: A,D,E,F
Rationale: The innate immune system is composed of the skin and mucous membranes, cilia, stomach acid, tears, saliva, sebaceous glands, and secretions and flora of the intestine and vagina. These organs, tissues, and secretions provide biochemical and physical barriers to disease.