What is the primary action of warfarin as an anticoagulant?

Correct Answer: A

Rationale: Warfarin is classified as an anticoagulant, which means its primary function is to prevent the formation of blood clots. By inhibiting the synthesis of certain clotting factors in the liver, warfarin reduces the blood's ability to clot, making it an important medication in preventing conditions like strokes and deep vein thrombosis.

Correct Answer: A

Rationale: Low potassium levels can lead to Digoxin toxicity because Digoxin competes with potassium for binding sites on the sodium-potassium pump, and when potassium levels are low, there is an increased risk of Digoxin binding and toxicity.

Correct Answer: D

Rationale: Alteplase is a thrombolytic agent used to dissolve blood clots. Patients receiving Alteplase are at risk for bleeding complications, including intracranial bleeding. Monitoring for changes in the level of consciousness is crucial as it can indicate early signs of bleeding, such as increased intracranial pressure. This rapid assessment allows for timely intervention and prevention of further complications.

Correct Answer: A

Rationale: Furosemide, a loop diuretic commonly used in heart failure, can cause hypokalemia (low potassium levels) as a side effect. Monitoring serum potassium levels is crucial to detect and prevent complications associated with low potassium levels, such as cardiac arrhythmias. Therefore, the nurse should prioritize assessing the client's serum potassium levels regularly while on Furosemide.

Correct Answer: B

Rationale: Using albuterol before cromolyn ensures the airways are open, allowing the maximum dose of medication to reach the lungs.

Correct Answer: B

Rationale: Lithium is classified as a mood stabilizer due to its primary use in managing bipolar disorder, where it helps stabilize mood swings and prevent episodes of mania and depression. While it can have other effects on the body, its main therapeutic role lies in its mood-stabilizing properties.

Correct Answer: C

Rationale: Iron supplements can cause constipation as a side effect. Increasing fiber intake is recommended to help prevent constipation when taking iron supplements. Fiber helps promote healthy bowel movements and can counteract the constipating effects of iron.

Correct Answer: B

Rationale: Hydrochlorothiazide, a diuretic, can cause hypokalemia by promoting potassium excretion. Increasing potassium-rich foods, such as bananas or oranges, can help counteract this effect and maintain electrolyte balance.

Correct Answer: C

Rationale: Taking ferrous sulfate with orange juice helps enhance the absorption of iron due to the ascorbic acid present in the orange juice, which aids in iron absorption. This combination can help improve the effectiveness of the medication.