Nokea
When administering digoxin immune Fab to a patient with severe digoxin toxicity, the nurse knows that each vial can bind with how much digoxin?
- A. 0.5 mg
- B. 1 mg
- C. 1.5 mg
- D. 2 mg
Correct Answer: A
Rationale: Each vial of digoxin immune Fab (Digifab) can bind approximately 0.5 mg of digoxin, helping to neutralize the drug in cases of severe toxicity.
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The nurse is reviewing discharge teaching for a patient who will be taking digoxin therapy. The nurse will teach the patient to avoid which foods when taking the digoxin?
- A. Leafy green vegetables
- B. Dairy products
- C. Grapefruit juice
- D. Bran muffins
Correct Answer: D
Rationale: Bran, in large amounts, may decrease the absorption of oral digitalis drugs. The other foods do not affect digoxin levels.
The medication order for a 5-year-old child reads, -Give digoxin elixir, 15 mcg/kg, PO now. Convert the 15 micrograms to milligrams.
Correct Answer: 0.015 mg
Rationale: 1000 mcg : 1 mg :: 15 mcg : x mg; (1000 * x) = (1 * 15); 1000x = 15; x = 15/1000 = 0.015 mg.
A patient in the intensive care unit is on a dobutamine infusion and is to receive furosemide 40 mg IV now. What is the nurse's best action to administer the furosemide?
- A. Infuse the drug into the same intravenous line as the milrinone.
- B. Stop the milrinone, flush the line, and then administer the furosemide.
- C. Administer the furosemide in a separate intravenous line.
- D. Notify the prescriber that the furosemide cannot be given at this time.
Correct Answer: C
Rationale: Furosemide must not be injected into an intravenous line with milrinone because it will precipitate immediately. The infusion must not be stopped because of the patient's condition. A separate line will be needed. The other options are incorrect.
In assessing a patient before administration of a cardiac glycoside, the nurse knows that which lab result can increase the toxicity of the drug?
- A. Potassium level 2.8 mEq/L
- B. Potassium level 4.9 mEq/L
- C. Sodium level 140 mEq/L
- D. Calcium level 10 mg/dL
Correct Answer: A
Rationale: Hypokalemia increases the chance of digitalis toxicity. The other levels listed are incorrect.
A patient has a digoxin level of 1.1 ng/mL. Which interpretation by the nurse is correct?
- A. It is below the therapeutic level.
- B. It is within the therapeutic range.
- C. It is above the therapeutic level.
- D. It is at a toxic level.
Correct Answer: B
Rationale: The normal therapeutic drug level of digoxin is between 0.5 and 2 ng/mL. The other options are incorrect.