the nurse is reviewing the lab results of a patient who has presented in the emergency room the lab results show that the troponin t value is at 53 ng
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Nursing Elites

NCLEX-RN

NCLEX RN Exam Review Answers

1. The healthcare provider is reviewing the lab results of a patient who has presented in the Emergency Room. The lab results show that the troponin T value is at 5.3 ng/mL. Which of these interventions, if not already completed, would take priority over the others?

Correct answer: C

Rationale: In this scenario, the elevated Troponin T level indicates cardiac damage, possibly due to a myocardial infarction. A Troponin T value of 5.3 ng/mL is significantly elevated (normal levels are below 0.2 ng/mL), suggesting acute cardiac injury. Given the setting of an Emergency Room and the critical nature of the situation, the priority intervention should be to obtain and attach defibrillator leads. Elevated Troponin T levels can indicate a higher risk of arrhythmias, including ventricular fibrillation, which can lead to sudden cardiac arrest. Defibrillator leads are essential for monitoring the patient's cardiac rhythm and readiness for immediate defibrillation if necessary. Placing the patient in a 90-degree position (Choice A) or assessing diuretic use (Choice B) are not immediate priorities in this critical situation. Additionally, assessing the patient's last ejection fraction (Choice D) is important but not as urgent as preparing for potential life-threatening arrhythmias requiring defibrillation.

2. A child is diagnosed with Hirschsprung's disease. The nurse is teaching the parents about the cause of the disease. Which statement, if made by the parent, supports that teaching was successful?

Correct answer: A

Rationale: Hirschsprung's disease, also known as congenital aganglionosis or megacolon, is characterized by the absence of ganglion cells in the rectum and, sometimes, extending into the colon. Choice A correctly explains the cause of Hirschsprung's disease. Choice B is incorrect as it describes celiac disease, which is related to gluten intolerance. Choice C is inaccurate as it describes symptoms of irritable bowel syndrome, not the cause of Hirschsprung's disease. Choice D is wrong as it pertains to lactose intolerance, not Hirschsprung's disease.

3. In which of the following conditions would a healthcare provider not administer erythromycin?

Correct answer: D

Rationale: Erythromycin is an antibiotic used to treat bacterial infections. Multiple sclerosis (MS) is an autoimmune disease affecting the central nervous system, involving the brain and spinal cord. Since MS is not caused by bacteria, administering erythromycin would not be appropriate. Campylobacteriosis infection, Legionnaires disease, and pneumonia are bacterial infections that can be treated with erythromycin, making them incorrect choices for conditions where erythromycin would not be administered.

4. Mr. L was working in his garage at home and had an accident with a power saw. He is brought into the emergency department by a neighbor with a traumatic hand amputation. What is the first action of the nurse?

Correct answer: B

Rationale: The correct first action for the nurse in this scenario is to apply direct pressure to the injury. When a client presents with traumatic hand amputation causing excessive bleeding, the immediate goal is to control the bleeding. Applying direct pressure with a sterile dressing helps to stem the flow of blood and stabilize the patient. Placing a tourniquet at the level of the elbow should be avoided initially as it may lead to further complications such as tissue damage. Administering a bolus of 0.9% Normal Saline is not the priority in this situation where hemorrhage control is crucial. Elevating the injured extremity on a pillow does not address the primary concern of controlling the bleeding and stabilizing the patient.

5. The nurse is caring for a 27-year-old female client with a venous stasis ulcer. Which nursing intervention would be most effective in promoting healing?

Correct answer: B

Rationale: Venous stasis occurs when venous blood collects and stagnates in the lower leg due to incompetent venous valves. This leads to inadequate oxygen and nutrient supply to the cells in the lower extremities, resulting in cell death or necrosis. Venous stasis ulcers, characterized by shallow brown wounds with irregular margins, typically develop on the lower leg or ankle. The primary goal in managing clients with venous stasis ulcers is to promote healing. Proper nutrition plays a crucial role in wound healing. Nutritional deficiencies are common causes of venous ulcers, and a diet rich in protein, iron, zinc, and vitamins C and A is recommended to enhance wound healing. Applying dressings with sterile technique, initiating limb compression therapy, and beginning proteolytic debridement are important interventions in wound care but may not directly address the underlying issue of poor nutrition that is essential for healing venous stasis ulcers.

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