HESI RN
RN HESI Exit Exam
1. The nurse is assessing a client with chronic obstructive pulmonary disease (COPD) who is receiving supplemental oxygen. Which laboratory value is most concerning?
- A. Serum sodium of 135 mEq/L
- B. Serum potassium of 4.0 mEq/L
- C. Serum bicarbonate of 18 mEq/L
- D. Serum glucose of 300 mg/dL
Correct answer: C
Rationale: A serum bicarbonate level of 18 mEq/L is most concerning in a client with COPD as it indicates metabolic acidosis, requiring immediate intervention. In COPD, patients often retain carbon dioxide, leading to respiratory acidosis. A low serum bicarbonate level suggests that the body is compensating for this respiratory acidosis by increasing bicarbonate levels to maintain balance. Therefore, a low serum bicarbonate level in this scenario is alarming. Choices A, B, and D are within normal ranges and not directly related to the acid-base imbalance seen in COPD.
2. Following a gunshot wound to the abdomen, a young adult male had an emergency bowel resection and received multiple blood products while in the operating room. His current blood pressure is 78/52 mm Hg, he is being mechanically ventilated, and his oxygen saturation is 87%. His laboratory values include hemoglobin 7.0 g/dL, platelets 20,000/mm³, and white blood cells 1,500/mm³. Based on these assessment findings, which intervention should the nurse implement first?
- A. Transfuse packed red blood cells.
- B. Obtain blood and sputum cultures.
- C. Infuse 1000 ml of normal saline.
- D. Titrate oxygen to keep O2 saturation at 90%.
Correct answer: A
Rationale: The client is exhibiting signs of severe anemia and hypovolemic shock, indicated by low hemoglobin levels and hypotension. The first priority is to address the low hemoglobin by transfusing packed red blood cells to improve oxygen-carrying capacity and perfusion to vital organs. While obtaining blood and sputum cultures is important for identifying potential infections, infusing normal saline can help with volume expansion but does not address the primary issue of severe anemia. Titrating oxygen to maintain an oxygen saturation of 90% is crucial but should follow the administration of packed red blood cells to optimize oxygen delivery.
3. A client with chronic obstructive pulmonary disease (COPD) is admitted with pneumonia. Which intervention should the nurse implement first?
- A. Administer oxygen therapy as prescribed.
- B. Elevate the head of the bed.
- C. Obtain a sputum culture.
- D. Administer antibiotics as prescribed.
Correct answer: A
Rationale: In a client with COPD admitted with pneumonia, the priority intervention should be to administer oxygen therapy as prescribed. This is crucial to improve oxygenation, especially in a client with compromised respiratory function. Elevating the head of the bed can help with breathing but is secondary to ensuring adequate oxygenation. Obtaining a sputum culture and administering antibiotics are important steps in the treatment of pneumonia but come after ensuring adequate oxygen supply.
4. A client with a history of chronic kidney disease is scheduled for a renal biopsy. Which laboratory value should the nurse report to the healthcare provider before the procedure?
- A. Serum creatinine of 1.8 mg/dl
- B. Prothrombin time of 18 seconds
- C. Hemoglobin of 9 g/dl
- D. Platelet count of 90,000/mm3
Correct answer: D
Rationale: A platelet count of 90,000/mm3 is low and concerning for a client scheduled for a renal biopsy, as it increases the risk of bleeding. Thrombocytopenia, indicated by a low platelet count, can lead to impaired blood clotting, posing a significant risk of bleeding during or after the biopsy procedure. Elevated serum creatinine levels may be expected in chronic kidney disease but are not directly related to bleeding risk during a renal biopsy. Prothrombin time and hemoglobin levels are not as directly relevant to the bleeding risk associated with a renal biopsy as platelet count.
5. A woman with an anxiety disorder calls her obstetrician's office and tells the nurse of increased anxiety since the normal vaginal delivery of her son three weeks ago. Since she is breastfeeding, she stopped taking her antianxiety medications, but thinks she may need to start taking them again because of her increased anxiety. What response is best for the nurse to provide this woman?
- A. Describe the transmission of drugs to the infant through breast milk
- B. Encourage her to use stress-relieving alternatives, such as deep breathing exercises
- C. Inform her that some antianxiety medications are safe to take while breastfeeding
- D. Explain that anxiety is a normal response for the mother of a 3-week-old.
Correct answer: C
Rationale: There are several antianxiety medications that are not contraindicated for breastfeeding mothers, so it is important to inform her of this option.
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