Nokea
In which time frame must blood be transfused within once it has been removed from refrigeration?
- A. 2 hours
- B. 4 hours
- C. 6 hours
- D. 3 hours
Correct Answer: B
Rationale: Blood must be administered within 4 hours after removal from refrigeration, and blood components within 6 hours of removal.
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The nurse has arrived at the patient's bedside with a unit of packed cells to be connected to an IV that is infusing. When the registered nurse arrives, which action do the nurses take first?
- A. Check to ensure that the donor and recipient numbers match according to policy.
- B. Request the patient to sign the card on the packed cells.
- C. Immediately administer the packed cells.
- D. Check the patient's ID bracelet and then administer the packed cells.
Correct Answer: A
Rationale: Donor and recipient numbers are specific and must be thoroughly checked and the patient identified with an armband.
A patient is undergoing immunotherapy on a perennial basis. With this form of treatment, the patient receives treatment scheduled in which way?
- A. Larger doses each week
- B. Higher concentrations each week
- C. Increased amounts and concentrations
- D. The same amount and concentration each visit
Correct Answer: C
Rationale: Perennial therapy is most widely accepted, because it allows for a higher cumulative dose, which produces a better effect. Perennial therapy begins with a diluted dose of the allergen that is increased progressively each week.
The nurse outlines for a patient who has asthma attacks from pollen that the process from exposure to symptoms follows a systematic sequence. Which change is the last physiologic responses of an allergic asthma attack?
- A. Release of histamine
- B. Edema
- C. Vasodilation
- D. Activation of mast cells
- E. Bronchospasm
- F. Exposure to pollen
Correct Answer: E
Rationale: The mast cells in the lungs are activated by the exposure to pollen. Histamine is released causing vasodilation, edema, and bronchospasm for the asthmatic.
If a nurse is sensitive to latex gloves, which potential food sensitivities might the nurse have developed?
- A. Peanuts
- B. Avocados
- C. Milk
- D. Bananas
- E. Tomatoes
- F. Melons
Correct Answer: B,D,E,F
Rationale: A person sensitive to latex may also be sensitive to certain foods, including avocados, kiwi, bananas, chestnuts, hazelnuts, tomatoes, and melons.
The transfer of tissue between genetically identical individual (twins) is a(n) ___
Correct Answer: isograft
Rationale: An isograft is the transfer of tissue between genetically identical individual (twins).