ATI RN

1. A 65-year-old man is admitted to the intensive care unit from the operating room after a triple coronary artery bypass graft. He is intubated and on a ventilator. Lactic acid levels were normal postoperatively, but now they are rising. The increased level could be an indication of:

• A. excessive sedation
• B. bowel ischemia
• C. excessive volume infusion in the operating room.
• D. mild hypothermia postoperatively.

Correct Answer: bowel ischemia

Rationale:

2. Which of the following statements describes a cellular membrane exchange process that is active?

• A. Sodium moving out of cells and potassium moving into cells
• B. The movement of water from an area of low solute concentration to an area of high solute concentration
• C. The movement of insulin using a protein to travel across the cell membrane
• D. Oxygen moving across the pulmonary capillaries to an area of high carbon dioxide

Correct Answer: Sodium moving out of cells and potassium moving into cells

Rationale:

3. The canola plants genome is altered to produce an herbicide resistant crop. The canola oil produced from this crop is an example of a:

• A. pesticide-free food.
• B. saturated fat food
• C. genetically modified food.
• D. product that is pure.

Correct Answer: genetically modified food.

Rationale:

4. A 30-year-old man has a history of heart transplant and is receiving long-term steroids to prevent rejection. The patient is due for routine vaccines. Attenuated vaccines are contraindicated in this patient because the antigen is:

• A. live and can cause infection.
• B. mutated and infectious.
• C. inactive but still infectious
• D. pathogenic

Correct Answer: live and can cause infection.

Rationale:

5. A 20-year-old male shoots his hand with a nail gun while replacing roofing shingles. Which of the following cell types would be the first to aid in killing bacteria to prevent infection in his hand?

• A. Eosinophils
• B. Neutrophils
• C. Leukotrienes
• D. Monocytes

Correct Answer: Neutrophils

Rationale: