HESI LPN
HESI Fundamentals Study Guide
1. The healthcare provider is assessing an immobile patient for deep vein thromboses (DVTs). Which action will the healthcare provider take?
- A. Remove elastic stockings every 4 hours.
- B. Measure the calf circumference of both legs.
- C. Lightly rub the lower leg for redness and tenderness.
- D. Dorsiflex the foot while assessing for patient discomfort.
Correct answer: B
Rationale: The correct action when assessing an immobile patient for deep vein thromboses (DVTs) is to measure the calf circumference of both legs. This helps in detecting swelling or changes that may indicate the presence of a DVT. Removing elastic stockings every 4 hours (Choice A) is not necessary and can disrupt circulation. Lightly rubbing the lower leg for redness and tenderness (Choice C) can potentially dislodge a clot if present. Dorsiflexing the foot while assessing for patient discomfort (Choice D) is not a specific assessment for DVT and may not provide relevant information in this context.
2. A nurse is preparing to administer ketorolac 0.5 mg/kg IV bolus every 6 hr to a school-age child who weighs 66 lb. The available ketorolac injection is 30 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)
- A. 0.5 mL
- B. 1 mL
- C. 1.5 mL
- D. 2 mL
Correct answer: A
Rationale: To calculate the dose, first convert the weight from pounds to kilograms. The child weighs 66 lb, which is approximately 30 kg. The prescribed dose is 0.5 mg/kg, so for a 30 kg child, the dose would be 0.5 mg/kg x 30 kg = 15 mg. Since the available ketorolac injection is 30 mg/mL, the nurse should administer 15 mg รท 30 mg/mL = 0.5 mL per dose. Therefore, choice A (0.5 mL) is the correct answer. Choices B, C, and D are incorrect as they do not accurately calculate the correct dose based on the child's weight and the concentration of the ketorolac injection.
3. A client in the emergency department is being cared for by a nurse and has abdominal trauma. Which of the following assessment findings should the nurse identify as an indication of hypovolemic shock?
- A. Tachycardia
- B. Elevated blood pressure
- C. Warm, dry skin
- D. Decreased respiratory rate
Correct answer: A
Rationale: Tachycardia is a hallmark sign of hypovolemic shock. When a client experiences significant blood loss, the body compensates by increasing the heart rate to maintain adequate perfusion to vital organs. Elevated blood pressure is not typically seen in hypovolemic shock; instead, hypotension is a more common finding. Warm, dry skin is characteristic of neurogenic shock, not hypovolemic shock. Decreased respiratory rate is not a typical manifestation of hypovolemic shock, as the body usually tries to increase respiratory effort to improve oxygenation in response to hypovolemia.
4. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
5. A healthcare professional is assessing postoperative circulation of the lower extremities for a client who had knee surgery. The healthcare professional should test which of the following?
- A. Range of motion
- B. Skin color
- C. Edema
- D. Skin temperature
Correct answer: B
Rationale: Corrected Rationale: Assessing skin color is crucial to evaluate perfusion and circulation postoperatively. Skin color changes can indicate compromised circulation, such as pallor or cyanosis. Edema may suggest fluid retention but is not a direct indicator of circulation status. Range of motion is more related to joint function and mobility, not specifically circulation.
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