HESI RN
HESI RN Exit Exam
1. A client with type 1 diabetes is admitted with diabetic ketoacidosis (DKA). Which intervention is most important?
- A. Administer intravenous fluids as prescribed.
- B. Monitor the client's urine output.
- C. Administer insulin as prescribed.
- D. Administer 50% dextrose IV push.
Correct answer: C
Rationale: Administering insulin is the most important intervention in managing diabetic ketoacidosis. In DKA, there is a lack of insulin leading to hyperglycemia and ketosis. Insulin administration helps to reduce blood glucose levels and correct metabolic acidosis, which are crucial in treating DKA. Administering intravenous fluids helps with dehydration, monitoring urine output is important to assess renal function, but the priority is addressing the underlying cause of DKA by administering insulin. Administering 50% dextrose IV push is incorrect as it would further elevate blood glucose levels, which is contraindicated in DKA.
2. A client with a history of atrial fibrillation is prescribed warfarin (Coumadin). Which laboratory value is most concerning?
- A. INR of 3.0
- B. Prothrombin time (PT) of 15 seconds
- C. Hemoglobin of 10 g/dl
- D. White blood cell count
Correct answer: A
Rationale: An INR of 3.0 is most concerning in a client prescribed warfarin (Coumadin) as it indicates a high risk of bleeding, requiring immediate intervention. A high INR value suggests that the blood is taking longer to clot, putting the patient at an increased risk of hemorrhage. Prothrombin time (PT) measures how long it takes for blood to clot, but the specific value of 15 seconds is within the normal range. Hemoglobin of 10 g/dl indicates mild anemia and does not directly relate to the risk of bleeding associated with warfarin therapy. White blood cell count assesses immune function and infection risk, but it is not directly related to the anticoagulant effects of warfarin.
3. The healthcare provider prescribes ceftazidime (Fortaz) 35 mg every 8 hours IM for an infant. The 500 mg vial is labeled with the instruction to add 5.3 ml diluent to provide a concentration of 100 mg/ml. How many ml should the nurse administer for each dose?
- A. 0.35 ml
- B. 0.40 ml
- C. 0.50 ml
- D. 0.45 ml
Correct answer: B
Rationale: To calculate the volume to be administered for 35 mg of ceftazidime, divide the prescribed dose by the concentration: 35 mg / 100 mg/ml = 0.35 ml. Rounding off, the nurse should administer 0.4 ml for each dose. Choice A is incorrect as it doesn't consider rounding off. Choice C is incorrect because it's not the correct calculation. Choice D is incorrect as it doesn't reflect the accurate volume needed.
4. A client with cirrhosis is admitted with jaundice and ascites. Which assessment finding is most concerning?
- A. Peripheral edema
- B. Confusion and altered mental status
- C. Yellowing of the skin
- D. Increased abdominal girth
Correct answer: C
Rationale: In a client with cirrhosis presenting with jaundice and ascites, yellowing of the skin (icterus) is the most concerning assessment finding. This indicates significant liver dysfunction and a high level of bilirubin in the blood. Yellowing of the skin suggests a severe impairment of the liver's ability to process bilirubin, which can lead to serious complications. Peripheral edema and increased abdominal girth are common manifestations of cirrhosis but are not as acutely concerning as skin yellowing. Confusion and altered mental status are also critical findings in cirrhosis, indicating hepatic encephalopathy, but skin yellowing is more closely associated with the severity of liver dysfunction in this scenario.
5. A client with chronic obstructive pulmonary disease (COPD) is admitted with an exacerbation. Which clinical finding requires immediate intervention?
- A. Oxygen saturation of 90%
- B. Respiratory rate of 24 breaths per minute
- C. Use of accessory muscles
- D. Inspiratory crackles
Correct answer: C
Rationale: The correct answer is C. The use of accessory muscles in a client with COPD indicates increased work of breathing and may signal respiratory failure, requiring immediate intervention. This finding suggests that the patient is struggling to breathe effectively. Oxygen saturation of 90% is low but not critically low, while a respiratory rate of 24 breaths per minute is slightly elevated but not as concerning as the increased work of breathing indicated by the use of accessory muscles. Inspiratory crackles may be present in COPD due to underlying conditions like pneumonia but do not require immediate intervention as the use of accessory muscles does.
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