a client who has a new prescription for warfarin coumadin asks the nurse how the medication works what explanation should the nurse provide
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Nursing Elites

HESI RN

HESI RN CAT Exit Exam

1. A client who has a new prescription for warfarin (Coumadin) asks the nurse how the medication works. What explanation should the nurse provide?

Correct answer: B

Rationale: The correct answer is B: 'It prevents the blood from clotting.' Warfarin works by inhibiting the synthesis of vitamin K-dependent clotting factors in the liver, thereby preventing the formation of blood clots. Choice A is incorrect because warfarin does not dissolve existing blood clots but prevents new ones from forming. Choice C is partially correct but not as specific as choice B in explaining how warfarin works. Choice D is unrelated to the mechanism of action of warfarin and is incorrect.

2. A 59-year-old male client is brought to the emergency room where he is assessed to have a Glasgow Coma Scale of 3. Based on this assessment, how should the nurse characterize the client's condition?

Correct answer: D

Rationale: A Glasgow Coma Scale of 3 indicates severe neurological impairment, suggesting a deep coma or even impending death. This client's condition is critical, and he has a very poor prognosis. Choice A is incorrect because a GCS of 3 does not directly indicate increased intracranial pressure. Choice B is incorrect as a GCS of 3 signifies a grave neurological status. Choice C is incorrect as a GCS of 3 represents a state of unconsciousness rather than being conscious but disoriented.

3. A client with chronic obstructive pulmonary disease (COPD) is receiving oxygen at 2 liters per minute via nasal cannula. The client reports difficulty breathing. What action should the nurse take first?

Correct answer: C

Rationale: The correct action for the nurse to take first when a client with COPD reports difficulty breathing while receiving oxygen is to check the client's oxygen saturation level. This helps in determining the adequacy of oxygenation and identifying the cause of the breathing difficulty. Increasing the oxygen flow rate (Choice A) may not be appropriate without knowing the current oxygen saturation level. Instructing the client to breathe deeply and cough (Choice B) may not address the immediate need for oxygen assessment. Placing the client in a high-Fowler's position (Choice D) can help with breathing but should come after ensuring proper oxygenation.

4. The nurse is triaging clients from a train wreck. A client has multiple open wounds, a blood pressure of 90/56, and a pulse of 112 beats/minute. Which triage tag color should the nurse place on this client?

Correct answer: D

Rationale: The correct answer is D: Red. The client's vital signs indicate critical condition with a high pulse and low blood pressure, suggesting shock. A red tag is used to identify patients who require immediate attention and should be prioritized for treatment. Choice A, Black, is incorrect as it is typically used for deceased or expectant clients. Choice B, Yellow, is used for clients with non-life-threatening injuries who require medical care but can wait. Choice C, Green, is for clients with minor injuries who can wait the longest for treatment. Therefore, in this scenario, the client's condition warrants a red triage tag for immediate attention.

5. A 17-year-old female is seen in the school clinic for an evaluation of abdominal pain and dysmenorrhea. The client's last menstrual period was 3 weeks ago, and her vital signs are within normal limits. Which action should the nurse take first?

Correct answer: A

Rationale: The correct action the nurse should take first is to refer the client to a healthcare provider for a pelvic examination. This is important to rule out serious conditions that may be causing the abdominal pain and dysmenorrhea. While notifying the parents, determining the date of the client's last menstrual period, and asking the client to lie down for a pelvic examination could be necessary steps, the priority is to ensure a proper evaluation by a healthcare provider to address the client's presenting symptoms effectively.

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