Nursing Elites

1. What is the primary action of warfarin as an anticoagulant?

• A. Prevents the formation of blood clots
• B. Dissolves existing blood clots
• C. Dilates coronary arteries
• D. Treats rhythm disturbances

Correct answer: A

Rationale: The correct answer is A: "Prevents the formation of blood clots." Warfarin acts as an anticoagulant by inhibiting the synthesis of certain clotting factors in the liver. This action reduces the blood's ability to clot, making it effective in preventing the formation of blood clots. Choice B is incorrect because warfarin does not dissolve existing blood clots; it prevents their formation. Choice C is incorrect because warfarin's primary action is not to dilate coronary arteries. Choice D is incorrect as warfarin is not used to treat rhythm disturbances, but rather to prevent clot formation.

2. A healthcare professional is educating clients in an outpatient facility about the use of Insulin to treat type 1 Diabetes Mellitus. For which of the following types of insulin should the professional inform the clients to expect a peak effect 1 to 5 hr after administration?

• A. Insulin glargine
• B. NPH insulin
• C. Regular insulin
• D. Insulin lispro

Correct answer: C

Rationale: The correct answer is C, Regular insulin. Regular insulin, also known as short-acting insulin, typically exhibits a peak effect around 1 to 5 hours following administration. This rapid onset and peak effect make it suitable for managing postprandial glucose levels. Insulin glargine is a long-acting insulin with no pronounced peak effect, making it unsuitable for rapid glucose control within 1 to 5 hours. NPH insulin has an intermediate duration of action and a different peak time frame. Insulin lispro is a rapid-acting insulin that peaks within 30 minutes to 2.5 hours after administration, not within the 1 to 5-hour range.

3. A client has a new prescription for Metformin to treat type 2 diabetes. Which of the following laboratory results should be monitored?

• A. Hemoglobin A1C
• B. Liver function tests
• C. Electrolyte levels
• D. Kidney function

Correct answer: D

Rationale: Metformin is excreted by the kidneys, and impaired kidney function can lead to an increased risk of lactic acidosis, a serious side effect. Therefore, it is important to monitor kidney function regularly while a client is on Metformin. Hemoglobin A1C is used to monitor long-term glucose control, but kidney function is the priority for monitoring Metformin therapy.

4. A client is prescribed Diltiazem. Which of the following findings should the nurse monitor?

• A. Tachycardia
• B. Bradycardia
• C. Hypertension
• D. Hyperkalemia

Correct answer: B

Rationale: Diltiazem is a calcium channel blocker that can cause bradycardia as an adverse effect due to its negative chronotropic properties, slowing down the heart rate. Therefore, the nurse should monitor the client for signs of bradycardia by regularly assessing the heart rate to prevent potential complications. Monitoring for tachycardia (choice A) is incorrect as diltiazem typically does not cause tachycardia. Hypertension (choice C) is not a typical finding to monitor for with diltiazem use. Hyperkalemia (choice D) is not directly associated with diltiazem administration.

5. A healthcare professional is preparing to administer vancomycin 1 g by intermittent IV bolus. Available is vancomycin 1 g in 100 mL of dextrose 5% in water (D5W) to infuse over 45 min. The drop factor of the manual IV tubing is 10 gtt/mL. How many gtt/min should the healthcare professional adjust the manual IV infusion to deliver?

• A. 22 gtt/min
• B. 24 gtt/min
• C. 20 gtt/min
• D. 18 gtt/min

Correct answer: A

Rationale: To calculate the flow rate, use the formula: (Volume in mL x Drop factor) / Time in minutes = Flow rate in gtt/min. In this case, (100 mL x 10 gtt/mL) / 45 min = 22 gtt/min. Thus, the healthcare professional should adjust the manual IV infusion to deliver 22 gtt/min. Choice B, 24 gtt/min, is incorrect because it miscalculates the flow rate. Choices C and D, 20 gtt/min and 18 gtt/min, are also incorrect as they do not accurately calculate the flow rate based on the given information.

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