HESI RN
HESI Medical Surgical Exam
1. A client receives a prescription for 1 liter of lactated Ringer's intravenously to be infused over 6 hours. How many mL/hr should the nurse program the infusion pump to deliver? (Enter numerical value only. If rounding is needed, round to the nearest whole number.)
- A. 167 mL/hr
- B. 200 mL/hr
- C. 83 mL/hr
- D. 111 mL/hr
Correct answer: A
Rationale: The correct infusion rate is 167 mL/hr. This is calculated by dividing the total volume (1000 mL) by the total time (6 hours), resulting in 166.67 mL/hr, which should be rounded to the nearest whole number as 167 mL/hr. This calculation ensures a steady infusion rate over the specified time frame. Choices B, C, and D are incorrect as they do not accurately reflect the correct calculation based on the volume and time provided in the prescription.
2. A client is admitted with acute kidney injury (AKI) and a urine output of 2000 mL/day. What is the major concern of the nurse regarding this client’s care?
- A. Edema and pain
- B. Electrolyte and fluid imbalance
- C. Cardiac and respiratory status
- D. Mental health status
Correct answer: B
Rationale: The major concern for a client admitted with acute kidney injury (AKI) and a high urine output of 2000 mL/day is electrolyte and fluid imbalance. In AKI, there may be an inflammatory cause leading to proteins entering the glomerulus, resulting in fluid being held in the filtrate and causing polyuria. Electrolyte loss and fluid balance are critical to monitor and manage in AKI cases. Edema and pain are not typically associated with fluid loss. While changes in cardiac, respiratory, and mental health status can occur if electrolyte imbalance is not addressed, the primary focus should be on managing electrolyte and fluid balance to prevent further complications.
3. A client has an elevated blood urea nitrogen (BUN)/creatinine ratio. Which action should the nurse take first?
- A. Assess the client’s dietary habits.
- B. Inquire about the client's use of nonsteroidal anti-inflammatory drugs (NSAIDs).
- C. Hold the client’s metformin (Glucophage).
- D. Contact the health care provider immediately.
Correct answer: A
Rationale: An elevated blood urea nitrogen (BUN)/creatinine ratio can indicate various conditions such as dehydration, urinary obstruction, catabolism, or a high-protein diet. The initial action the nurse should take is to assess the client’s dietary habits to determine if the elevated ratio is related to diet. Inquiring about the use of NSAIDs is important as they can impact kidney function, but dietary causes should be ruled out first. Holding metformin or contacting the health care provider without assessing the dietary habits would be premature actions as they may not address the underlying cause of the elevated BUN/creatinine ratio.
4. Which electrolyte imbalance is most likely to be seen in a patient with chronic kidney disease?
- A. Hypernatremia.
- B. Hyperkalemia.
- C. Hypocalcemia.
- D. Hypokalemia.
Correct answer: B
Rationale: In chronic kidney disease, hyperkalemia is the most common electrolyte imbalance due to the kidneys' reduced ability to excrete potassium. This impaired kidney function leads to potassium retention in the body, resulting in elevated serum potassium levels. Hypernatremia (increased sodium levels) is less likely in chronic kidney disease as the kidneys typically still function to regulate sodium levels. Hypocalcemia (low calcium levels) is not a prominent electrolyte imbalance in chronic kidney disease unless there are additional factors involved. Hypokalemia (low potassium levels) is less common in chronic kidney disease, as the primary issue is usually potassium retention rather than deficiency.
5. A middle-aged adult with a family history of CAD has the following: total cholesterol 198 (11 mmol/L); LDL cholesterol 120 (6.7 mmol/L); HDL cholesterol 58 (3.2 mmol/L); triglycerides 148 (8.2 mmol/L); blood sugar 102 (5.7 mmol/L); and C-reactive protein (CRP) 4.2. The health care provider prescribes a statin medication and aspirin. The client asks the nurse why these medications are needed. Which is the best response by the nurse?
- A. The labs indicate severe hyperlipidemia and the medications will lower your LDL, along with a low-fat diet.
- B. The triglycerides are elevated and will not return to normal without these medications.
- C. The CRP is elevated indicating inflammation seen in cardiovascular disease, which can be lowered by the medications prescribed.
- D. These medications will reduce the risk of type 2 diabetes.
Correct answer: C
Rationale: CRP is a marker of inflammation, which is elevated in cardiovascular disease. Statins and aspirin help lower CRP and reduce the risk of heart attacks and strokes.
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