HESI LPN
CAT Exam Practice Test
1. A heparin infusion is prescribed for a client who weighs 220 pounds. After administering a bolus dose of 80 units/kg, the nurse calculates the infusion rate for the heparin sodium at 18 units/kg/hour. The available solution is Heparin Sodium 25,000 units in 5% Dextrose Injection 250 ml. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 18
- B. 27
- C. 36
- D. 45
Correct answer: B
Rationale: To calculate the infusion rate, first, find the total dose required per hour, which is the patient's weight (220 pounds) multiplied by the prescribed rate (18 units/kg/hour). This equals 3960 units/hour. Next, determine how many ml of the solution contain 25,000 units; this is 250 ml. Divide the total dose required per hour (3960 units) by the units per ml (25,000 units/250 ml) to find how many ml are needed per hour. This results in 27 ml/hour. Therefore, the nurse should program the infusion pump to deliver 27 ml/hour. Choice A (18) is incorrect as it does not account for the concentration of the heparin solution. Choices C (36) and D (45) are incorrect as they do not reflect the accurate calculations based on the patient's weight and the heparin concentration in the solution.
2. Following an open reduction and internal fixation of a compound fracture of the leg, a male client complains of “a tingly sensation” in his left foot. The nurse determines the client’s left pedal pulses are diminished. Based on these findings, what is the client’s greatest risk?
- A. Reduce pulmonary ventilation and oxygenation related to fat embolism.
- B. Neurovascular and circulation compromise related to compartment syndrome.
- C. Wound infection and delayed healing due to fractured bone protrusion.
- D. Venous stasis and thrombophlebitis related to postoperative immobility.
Correct answer: B
Rationale: The correct answer is B. Compartment syndrome is a serious condition that can occur following trauma or surgery, leading to compromised neurovascular status in the affected limb. Symptoms include pain, paresthesia (tingling sensation), and diminished pulses. If left untreated, compartment syndrome can result in tissue damage and potential loss of limb function. Options A, C, and D are incorrect because they do not directly address the neurovascular compromise associated with compartment syndrome.
3. A client who had an intraosseous (IO) cannula placed by the healthcare provider for emergent fluid resuscitation is complaining of severe pain and numbness below the IO site. The skin around the site is pale and edematous. What action should the nurse take first?
- A. Discontinue the IO infusion
- B. Administer an analgesic via the IO site
- C. Elevate the extremity with the IO site
- D. Notify the healthcare provider
Correct answer: A
Rationale: The correct action for the nurse to take first is to discontinue the IO infusion. The client's symptoms of severe pain, numbness, pale skin, and edema below the IO site suggest a complication, such as extravasation or compartment syndrome. By discontinuing the infusion, further harm can be prevented. Administering an analgesic via the IO site or elevating the extremity would not address the underlying issue and could potentially worsen the condition. Notifying the healthcare provider can be done after stopping the infusion to seek further guidance or intervention.
4. The nurse is evaluating a client who has had a mastectomy and is experiencing pain and swelling in the arm on the affected side. What action should the nurse take?
- A. Assess for signs of lymphedema
- B. Encourage the client to perform arm exercises
- C. Provide pain relief through medication
- D. Recommend wearing a compression sleeve
Correct answer: A
Rationale: Assessing for signs of lymphedema is crucial in this situation as it is a common complication following mastectomy. Lymphedema presents as swelling and pain in the affected arm due to compromised lymphatic drainage. By assessing for lymphedema, the nurse can identify the condition early and implement appropriate interventions such as compression sleeves, manual lymphatic drainage, and exercises. Encouraging arm exercises (Choice B) may exacerbate the symptoms if lymphedema is present. While providing pain relief through medication (Choice C) is important, assessing for the underlying cause of pain and swelling takes precedence. Recommending a compression sleeve (Choice D) may be suitable but should come after a thorough assessment for lymphedema to ensure the most effective management plan.
5. The nurse is assigned to care for four surgical clients. After receiving report, which client should the nurse see first?
- A. An older client receiving packed RBCs on the third day postoperatively for colon resection
- B. An older client with continuous bladder irrigation who is 2 days postoperatively for bladder surgery
- C. An adult one day postoperatively from laparoscopic cholecystectomy requesting pain medication
- D. An adult in Buck’s traction, scheduled for hip arthroplasty within the next 12 hours
Correct answer: B
Rationale: The correct answer is B because the client with continuous bladder irrigation post-bladder surgery is at risk for complications like infection or bleeding. This client requires immediate attention to assess for any signs of complications such as urinary retention, hemorrhage, or infection. Choices A, C, and D have less urgent needs compared to a client with continuous bladder irrigation, which requires priority assessment.
Similar Questions
Access More Features
HESI LPN Basic
$69.99/ 30 days
- 5,000 Questions with answers
- All HESI courses Coverage
- 30 days access
HESI LPN Premium
$149.99/ 90 days
- 5,000 Questions with answers
- All HESI courses Coverage
- 30 days access