HESI RN
HESI 799 RN Exit Exam Quizlet
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which laboratory value is most concerning?
- A. Serum glucose of 300 mg/dl
- B. Serum bicarbonate of 18 mEq/L
- C. Serum potassium of 5.5 mEq/L
- D. Serum sodium of 135 mEq/L
Correct answer: C
Rationale: A serum potassium level of 5.5 mEq/L is concerning in a client with DKA as it may indicate worsening hyperkalemia, requiring immediate intervention. Elevated serum potassium levels can lead to life-threatening cardiac arrhythmias. While elevated glucose and low bicarbonate are characteristic of DKA, hyperkalemia poses a higher immediate risk. Serum sodium within the normal range is not typically a primary concern in DKA.
2. A client who recently underwent a tracheostomy is being prepared for discharge to home. Which instruction is most important for the nurse to include in the discharge plan?
- A. Explain how to use communication tools.
- B. Teach tracheal suctioning techniques.
- C. Encourage self-care and independence.
- D. Demonstrate how to clean the tracheostomy site.
Correct answer: B
Rationale: The most important instruction for a client who recently underwent a tracheostomy is to teach tracheal suctioning techniques. Suctioning helps clear secretions and maintain an open airway, which is critical for the client's respiratory function and overall well-being. While communication tools, self-care, and cleaning the tracheostomy site are important aspects of care, ensuring proper suctioning techniques is crucial for preventing complications and ensuring the client's safety.
3. At 0600 while admitting a woman for a scheduled repeat cesarean section (C-Section), the client tells the nurse that she drank a cup of coffee at 0400 because she wanted to avoid getting a headache. Which action should the nurse take first?
- A. Ensure preoperative lab results are available
- B. Start prescribed IV with lactated Ringer's
- C. Inform the anesthesia care provider
- D. Contact the client's obstetrician
Correct answer: C
Rationale: The correct action for the nurse to take first is to inform the anesthesia care provider. The patient's ingestion of coffee violates the NPO (nothing by mouth) guidelines before surgery, which increases the risk of aspiration during anesthesia. Informing the anesthesia care provider promptly allows for appropriate assessment and decision-making regarding the patient's anesthesia plan. Ensuring preoperative lab results, starting an IV, or contacting the obstetrician can be important steps but addressing the NPO violation and its implications on anesthesia safety take precedence.
4. A client with end-stage renal disease (ESRD) is scheduled for hemodialysis. Which laboratory value should be reported to the healthcare provider before the procedure?
- A. Serum creatinine of 2.5 mg/dL
- B. Serum potassium of 6.5 mEq/L
- C. Serum calcium of 8 mg/dL
- D. Serum bicarbonate of 24 mEq/L
Correct answer: B
Rationale: The correct answer is B. A serum potassium level of 6.5 mEq/L is dangerously high and should be reported before hemodialysis to prevent cardiac complications. High potassium levels can lead to life-threatening arrhythmias. Serum creatinine (Choice A) is elevated in renal dysfunction but not the most critical value to report before hemodialysis. Serum calcium (Choice C) and serum bicarbonate (Choice D) levels are within normal limits and are not immediate concerns before hemodialysis.
5. A client with a history of myocardial infarction is admitted with chest pain. Which diagnostic test should the nurse anticipate preparing the client for first?
- A. Electrocardiogram (ECG)
- B. Chest X-ray
- C. Arterial blood gases (ABGs)
- D. Echocardiogram
Correct answer: A
Rationale: The correct answer is A: Electrocardiogram (ECG). An electrocardiogram should be performed first to assess for cardiac ischemia in a client with a history of myocardial infarction and chest pain. This test provides immediate information about the heart's electrical activity. Choice B, Chest X-ray, is used to visualize the structures of the chest, including the heart and lungs, but it does not directly assess for cardiac ischemia. Choice C, Arterial blood gases (ABGs), measures the oxygen and carbon dioxide levels in the blood and assesses acid-base balance, which is not the primary concern in this scenario. Choice D, Echocardiogram, is an ultrasound of the heart that provides information about the heart's structure and function, but it is not the initial diagnostic test for assessing cardiac ischemia in this situation.
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