Specific cellular immunity is mediated by T lymphocytes, which enhance the efficiency of the phagocytic response. What do cytotoxic activated T cells do?
1. Enable T or B cells to respond to antigens
2. Repress responses to specific B or T lymphocytes to antigens
3. Kill foreign or virus-infected cells
4. Remove pathogens and cell debris
3
Explanation: 3. Cytotoxic activated T cells kill foreign or virus-infected cells.
You might also like to view...
The nurse is caring for a patient with cryptorchidism who is 28 years old and taking testosterone to treat his condition. What statement by this patient would lead the nurse to believe that he has understood the teaching provided about the drug?
A) "My body hair may increase." B) "My sexual desire may increase." C) "My voice may become higher." D) "My skin may become clear and soft."
A nurse is evaluating a patient who is receiving chemotherapy. The nurse checks the patient's neutrophil count and notes that it is 900 cells/mm3 . What intervention by the nurse would be most appropriate?
a. Skip the next dose of chemotherapy and notify the prescriber. b. Discontinue chemotherapy, because it is at a dangerous level. c. Hospitalize the patient, because there is a risk of possible infection. d. Continue to monitor the neutrophil count carefully, in case it continues to drop.
A patient with methicillin-resistant Staphylococcus aureus (MRSA) is no longer responding to the medication vancomycin (Vancocin). What medication might be indicated for this patient?
1. penicillin 2. gentamycin 3. tetracycline 4. linezolid
A nurse is grading the strength of evidence when critiquing a research study. Which domains will the nurse need to consider?
a. Randomness, sample size, and blinding b. Selection, variables, and description c. Nursing, medicine, and physiology d. Quality, quantity, and consistency