warfarin coumadin is an anticoagulant and interferes with the action of

ATI RN

ATI RN Custom Exams Set 1

1. Warfarin (Coumadin) is an anticoagulant and interferes with the action of:

A. Platelets
B. Vitamin K
C. Calcium
D. Vitamin B12

Correct answer: B

Rationale: The correct answer is B: Vitamin K. Warfarin inhibits the action of vitamin K, which is essential for blood clotting. By interfering with the production of certain clotting factors, warfarin helps prevent blood clots. Choices A, C, and D are incorrect because warfarin primarily affects the vitamin K-dependent clotting factors and not platelets, calcium, or vitamin B12.

2. Which of the following drugs contribute to peptic ulcers?

A. Antacids
B. Certain antibiotics
C. Cholesterol-lowering medications
D. Nonsteroidal anti-inflammatory drugs

Correct answer: D

Rationale: The correct answer is D: Nonsteroidal anti-inflammatory drugs (NSAIDs). NSAIDs are known to contribute to peptic ulcers by affecting the gastric mucosa. Choice A, Antacids, actually help to alleviate symptoms of peptic ulcers by neutralizing stomach acid. Choice B, Certain antibiotics, are used to treat H. pylori infections, a common cause of peptic ulcers. Choice C, Cholesterol-lowering medications, do not contribute to peptic ulcers.

3. A patient with hypothyroidism should be advised to consume more of which nutrient?

A. Calcium
B. Iodine
C. Vitamin C
D. Iron

Correct answer: B

Rationale: The correct answer is B: Iodine. Iodine is essential for thyroid hormone production, and its deficiency can contribute to hypothyroidism. While calcium, vitamin C, and iron are important for overall health, they are not specifically related to thyroid function. Calcium is more associated with bone health, vitamin C with immune function, and iron with red blood cell production.

4. Which of the following is NOT one of the three basic areas of concern into which practical nurse management responsibilities can be categorized?

A. Managing patients' legal affairs
B. Overseeing neurological functions
C. Managing work center operations
D. Managing personnel

Correct answer: A

Rationale: The correct answer is A: 'Managing patients' legal affairs.' Practical nurse management responsibilities are typically categorized into managing work center operations, managing personnel, and overseeing patient care. Legal affairs management is not a standard responsibility for practical nurse management. Choice B is incorrect as it introduces information about the hypothalamus, which is unrelated to the question. Choice C and D are both common areas of concern in practical nurse management, involving the operations of the work center and managing personnel, respectively.

5. A client with type 1 diabetes is diagnosed with diabetic ketoacidosis and initially treated with intravenous fluids followed by an IV bolus of regular insulin. The nurse anticipates that the practitioner will prescribe a continuous infusion of insulin of:

A. Novolin L insulin
B. Novolin R insulin
C. Novolin N insulin
D. Novolin U insulin

Correct answer: B

Rationale: The correct answer is Novolin R (Regular insulin). Regular insulin is used for continuous infusion to treat diabetic ketoacidosis due to its rapid onset of action. Novolin L (Intermediate-acting insulin) (choice A), Novolin N (Intermediate-acting insulin) (choice C), and Novolin U (Ultra-Long-acting insulin) (choice D) are not suitable for continuous infusion in the treatment of diabetic ketoacidosis.