HESI RN
HESI RN CAT Exit Exam 1
1. A client is receiving a low dose of dopamine (Intropin) IV for the treatment of hypotension. Which indicator reflects that the medication is having the desired effect?
- A. Increased heart rate
- B. Increased urinary output
- C. Increased blood pressure
- D. Increased respiratory rate
Correct answer: C
Rationale: Increased blood pressure is the desired effect of administering dopamine (Intropin) to treat hypotension. Dopamine acts by stimulating adrenergic receptors, leading to vasoconstriction and increased cardiac output. This results in an elevation of blood pressure. Choices A, B, and D are incorrect as they do not directly reflect the therapeutic action of dopamine in treating hypotension. Increased heart rate may indicate the body compensating for low blood pressure, increased urinary output is more related to kidney function, and increased respiratory rate is often seen in response to respiratory issues, not the action of dopamine on hypotension.
2. A client with an electrical burn on the forearm asks the nurse why there is no feeling of pain from the burn. During the dressing change, the nurse determines that the burn is dry, waxy, and white. What information should the nurse provide this client?
- A. The depth of tissue destruction is minor
- B. Pain is interrupted due to nerve compression
- C. The full thickness burn has destroyed the nerves
- D. Second-degree burns are not usually painful
Correct answer: C
Rationale: The correct answer is C: 'The full thickness burn has destroyed the nerves.' In full thickness burns, also known as third-degree burns, the nerve endings are destroyed, leading to a lack of pain sensation at the site of the burn. The description of the burn as dry, waxy, and white indicates a full thickness burn. Choices A, B, and D are incorrect because they do not explain the absence of pain in full thickness burns. Choice A is incorrect as a full-thickness burn involves significant tissue destruction. Choice B is incorrect because nerve compression would not explain the lack of pain in this context. Choice D is incorrect because second-degree burns, unlike full-thickness burns, are painful due to nerve endings being intact.
3. The nurse is caring for a client who is receiving a continuous intravenous infusion of heparin. Which laboratory value should the nurse monitor to evaluate the effectiveness of the therapy?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Partial thromboplastin time (PTT)
- D. Hemoglobin level
Correct answer: C
Rationale: The correct answer is C. Partial thromboplastin time (PTT) is the laboratory value that should be monitored to evaluate the effectiveness of heparin therapy. PTT reflects the intrinsic pathway of coagulation and is specifically sensitive to heparin's anticoagulant effects. Monitoring the PTT helps ensure that the client is within the therapeutic range to prevent clot formation without increasing the risk of bleeding. Choices A, B, and D are incorrect because while they are important laboratory values in other contexts, they are not specifically used to monitor the effectiveness of heparin therapy.
4. The nurse preceptor is orienting a new graduate nurse to the critical care unit. The preceptor asks the new graduate to state symptoms that most likely indicate the beginning of a shock state in a critically ill client. What findings should the new graduate nurse identify?
- A. Tachycardia, mental status change, and low urine output
- B. Warm skin, hypertension, and constricted pupils
- C. Bradycardia, hypotension, and respiratory acidosis
- D. Mottled skin, tachypnea, and hyperactive bowel sounds
Correct answer: A
Rationale: The correct answer is A: Tachycardia, mental status change, and low urine output are early signs of shock. Tachycardia is the body's compensatory mechanism to maintain perfusion, mental status changes can indicate decreased cerebral perfusion, and low urine output reflects poor renal perfusion. Choices B, C, and D are incorrect. Warm skin, hypertension, and constricted pupils are not typical findings in the early stages of shock. Bradycardia, hypotension, and respiratory acidosis are more indicative of late-stage shock. Mottled skin, tachypnea, and hyperactive bowel sounds can be seen in various conditions but are not specific early signs of shock.
5. A client with diabetes mellitus reports feeling shaky and has a blood glucose level of 60 mg/dl. What action should the nurse take?
- A. Administer 15 grams of carbohydrate
- B. Administer a glucagon injection
- C. Provide a snack with protein
- D. Encourage the client to rest
Correct answer: A
Rationale: In the scenario described, the client is experiencing hypoglycemia with a blood glucose level of 60 mg/dl. The appropriate action for the nurse to take is to administer 15 grams of carbohydrate. Carbohydrate intake helps to rapidly raise blood sugar levels in cases of hypoglycemia. Administering a glucagon injection (Choice B) is not the initial treatment for mild hypoglycemia; it is typically used for severe hypoglycemia when the client is unable to consume oral carbohydrates. Providing a snack with protein (Choice C) is not the first-line intervention for hypoglycemia; immediate carbohydrate intake is necessary to raise blood sugar levels quickly. Encouraging the client to rest (Choice D) may be appropriate after administering the carbohydrate, but the priority is to address the low blood glucose levels by administering carbohydrates first.
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