HESI RN
HESI Nutrition Practice Exam
1. When assessing a client for signs and symptoms of a fluid volume deficit, the nurse would be most concerned with which finding?
- A. Blood pressure of 90/60 mm Hg
- B. Heart rate of 110 beats per minute
- C. Respiratory rate of 24 breaths per minute
- D. Urine output of 30 mL per hour
Correct answer: A
Rationale: Corrected Rationale: A low blood pressure of 90/60 mm Hg is a significant finding indicating fluid volume deficit. In fluid volume deficit, the body tries to compensate by increasing heart rate (choice B) to maintain cardiac output. Respiratory rate (choice C) may increase as a compensatory mechanism, but it is not the primary concern in fluid volume deficit. Urine output (choice D) may decrease in response to fluid volume deficit, but it is a late sign and not the most concerning finding.
2. The nurse is monitoring a client who has just had a thyroidectomy. The client complains of tingling in the fingers and around the mouth. Which of these findings should the nurse assess first?
- A. Calcium level
- B. Chvostek's sign
- C. Trousseau's sign
- D. Serum potassium level
Correct answer: B
Rationale: The correct answer is B, Chvostek's sign. This is a classic sign of hypocalcemia, which can occur after a thyroidectomy due to injury or removal of the parathyroid glands. Hypocalcemia can lead to serious complications like tetany and laryngospasm, necessitating immediate attention. Assessing Chvostek's sign helps in early identification and management of hypocalcemia. Choices A, C, and D are not the priority in this situation. While assessing the calcium level is important for diagnosing hypocalcemia, the immediate concern is to identify clinical signs like Chvostek's sign, which indicate acute hypocalcemia. Trousseau's sign is also related to hypocalcemia but is not the most critical sign to assess first. Serum potassium level, although important for overall electrolyte balance, is not directly related to the client's current symptoms of tingling in the fingers and around the mouth.
3. A client with chronic obstructive pulmonary disease (COPD) is experiencing dyspnea. Which of these actions should the nurse perform first?
- A. Administer oxygen therapy
- B. Encourage the client to perform deep breathing exercises
- C. Raise the head of the bed
- D. Check the client's oxygen saturation level
Correct answer: D
Rationale: The correct answer is to check the client's oxygen saturation level first. This action is crucial in assessing the severity of dyspnea and determining the necessity for oxygen therapy. Administering oxygen therapy without knowing the current oxygen saturation level can be inappropriate and potentially harmful. Encouraging deep breathing exercises and raising the head of the bed are important interventions, but assessing the oxygen saturation level takes precedence in managing dyspnea in a client with COPD.
4. A client is being maintained on heparin therapy for deep vein thrombosis. The nurse must closely monitor which of the following laboratory values?
- A. Bleeding time
- B. Platelet count
- C. Activated PTT
- D. Clotting time
Correct answer: C
Rationale: Activated PTT is the correct lab value to monitor for clients on heparin therapy. Activated PTT (partial thromboplastin time) helps assess the effectiveness of heparin therapy by measuring the time it takes for blood to clot. Monitoring activated PTT ensures that the client is within the therapeutic range of heparin to prevent both clotting and bleeding complications. Bleeding time (Choice A) and platelet count (Choice B) are not specific indicators of heparin therapy effectiveness. Clotting time (Choice D) is not as sensitive as activated PTT in monitoring heparin therapy.
5. A client with diabetes mellitus has a blood glucose level of 350 mg/dL. Which of these actions should the nurse take first?
- A. Administer insulin as ordered
- B. Encourage the client to drink fluids
- C. Notify the healthcare provider
- D. Recheck the blood glucose level in 30 minutes
Correct answer: A
Rationale: Administering insulin as ordered is the priority action when a client with diabetes mellitus has a blood glucose level of 350 mg/dL. Insulin helps to lower the high blood glucose level and prevent complications such as diabetic ketoacidosis. Encouraging the client to drink fluids may be beneficial but does not address the immediate need to lower the blood glucose level. Notifying the healthcare provider and rechecking the blood glucose level can be important steps but should come after administering insulin to address the high glucose level promptly.
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