A patient tells the nurse that he's happy that his wife did not "catch" the same cold from which he has recently recovered. The nurse realizes that what most likely occurred in his wife?
1. Helper T cells had a memory of a previous exposure to the same virus that caused the patient's illness.
2. Suppressor T cells killed the virus.
3. The virus was eliminated via phagocytosis by neutrophils.
4. Cytokines were released.
Correct Answer: 1
Helper T cells stimulate B cells to make antibodies to specific antigens. These cells then have a "memory" of exposure, which will lead to a quick response if another exposure occurs. In this scenario, the wife must have had a previous exposure to the same virus that caused the patient's cold, and because of this "memory," the body immediately responded by eliminating the cold virus. Suppressor T cells stop the immune process and would not kill virus cells. Phagocytosis of the virus by neutrophils is an antibody-mediated response. This scenario describes a cell-mediated immune response. Cytokines are chemical messengers produced by cells to either increase the flow of white blood cells to a body area or coat an antigen to encourage phagocytosis.
You might also like to view...
A patient with rheumatoid arthritis has been diagnosed with a secondary immune-associated neutropenia called Felty syndrome
The nurse has had to research this and found that she should be assessing this patient for which of the following manifestations of Felty syndrome. Select all that apply. A) Upper left quadrant pain on palpation B) An area of diminished breath sounds related to pneumonia C) Intermittent pain that radiates from the flank to the groin D) Swelling and pain in all joints when put through full range of motion E) Headache that worsens when exposed to bright lights
A key step in an individual EBP effort is to integrate appraised research evidence with local contextual information
A) True B) False
A client who is recovering from thyroid storm has been started on methimazole (Tapazole) prior to discharge. The nurse should teach the client the importance of:
1. monitoring carefully for edema. 2. monitoring for enhanced taste. 3. taking the medication at the same time every day. 4. monitoring for hyperthyroidism.
A nurse is preparing to administer the first 5 mg dose of metoprolol (Toprol) to a patient who is 12 hours post MI. For which assessment finding should the nurse withhold administration of the medication?
1. Serum potassium 3.9 mEq/L 2. Blood pressure of 110/65 mm Hg 3. PR interval 0.12 second 4. Sinus bradycardia 52 beats per minute