ATI RN
ATI Pharmacology Book Questions
Question 1 of 5
What patient history would the nurse recognize as a contraindication for beginning Niacin therapy?
Correct Answer: B
Rationale: Gout is a contraindication for beginning Niacin therapy due to its potential to exacerbate gout symptoms. Niacin can lead to hyperuricemia, which is increased uric acid levels in the blood, and that can trigger a gout attack. Patients with a history of gout should avoid Niacin therapy to prevent worsening of their condition.
Question 2 of 5
A patient has been ordered the powdered form of the bile acid sequestrant colestipol. Which of the following does the nurse identify as true?
Correct Answer: D
Rationale: The correct statement is that the colestipol should be administered 1 hour before or 4 to 6 hours after any other oral medication. Bile acid sequestrants like colestipol can bind to other medications, reducing their absorption and effectiveness. Therefore, they should be taken separately from other medications to prevent any interactions. Additionally, colestipol should ideally be administered with meals to improve tolerability and adherence, although this was not one of the options given in the question.
Question 3 of 5
A patient will be receiving a thrombolytic drug as part of the treatment for acute myocardial infarction. The nurse explains to the patient that this drug is used for which purpose?
Correct Answer: C
Rationale: Thrombolytic drugs are used to dissolve blood clots (thrombi) that are causing blockages in blood vessels, such as the coronary arteries in the case of acute myocardial infarction (heart attack). By breaking down the clot, these drugs help to restore blood flow to the affected area, reducing damage to the heart muscle and improving the patient's prognosis. Thrombolytic therapy is time-sensitive and is most effective when administered soon after the onset of a heart attack to minimize the extent of heart muscle damage.
Question 4 of 5
When taking Digoxin, low levels of what can cause
Correct Answer: A
Rationale: When taking digoxin, low levels of potassium can cause an increased risk of digoxin toxicity. This is because digoxin and potassium compete for binding sites on the sodium-potassium pump in cardiac cells. Low potassium levels can lead to enhanced binding of digoxin to these pumps, resulting in increased concentrations of digoxin within the cells and potential toxicity. Therefore, it is important to monitor potassium levels regularly while taking digoxin to prevent complications.
Question 5 of 5
Chris asks the nurse whether all donor blood products are cross-matched with the recipient to prevent a transfusion reaction. Which of the following always require cross-matching?
Correct Answer: D
Rationale: Packed red blood cells (PRBCs) always require cross-matching with the recipient to prevent a transfusion reaction. Cross-matching is crucial for PRBCs because they contain red blood cells with antigens on their surface that may react with antibodies in the recipient's plasma, potentially causing a transfusion reaction. Cross-matching involves testing the compatibility of donor red blood cells with the recipient's plasma to ensure a safe transfusion. Other blood products like granulocytes, platelets, and plasma do not contain red blood cells and, therefore, do not require cross-matching.