HESI LPN
CAT Exam Practice
1. Which medication should the nurse anticipate administering to a client who is diagnosed with myxedema coma?
- A. Intravenous administration of thyroid hormones
- B. Oral administration of hypnotic agents
- C. Intravenous bolus of hydrocortisone
- D. Subcutaneous administration of vitamin K
Correct answer: A
Rationale: The correct answer is A: Intravenous administration of thyroid hormones. Myxedema coma is a severe form of hypothyroidism that necessitates immediate replacement of thyroid hormones. Administering thyroid hormones intravenously ensures rapid absorption and effectiveness in managing the condition. Choice B, oral administration of hypnotic agents, is incorrect as it does not address the primary issue of thyroid hormone deficiency in myxedema coma. Choice C, intravenous bolus of hydrocortisone, is not the appropriate treatment for myxedema coma as adrenal insufficiency is not the primary concern in this condition. Choice D, subcutaneous administration of vitamin K, is unrelated to the management of myxedema coma and does not address the underlying thyroid hormone deficiency that characterizes this condition.
2. In preparing to administer a scheduled dose of intravenous furosemide (Lasix) to a client with heart failure, the nurse notes that the client’s B-Type Naturetic peptide (BNP) is elevated. What action should the nurse take?
- A. Measure the client’s oxygen saturation before taking further action
- B. Administer a PRN dose of nitroglycerin (Nitrostat)
- C. Administer the dose of furosemide as scheduled
- D. Hold the dose of furosemide until contacting the healthcare provider
Correct answer: D
Rationale: Elevated BNP levels in a client with heart failure may indicate worsening heart failure. Therefore, the correct action for the nurse to take when encountering an elevated BNP before administering furosemide is to hold the dose and contact the healthcare provider for further guidance. This precaution is necessary to ensure the client's safety and prevent potential complications. Options A and B are incorrect as they do not address the issue of the elevated BNP, which is crucial in this situation. Option C is also incorrect because administering furosemide without consulting the healthcare provider could be harmful if the client's condition is deteriorating.
3. 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.
4. The nurse is calculating the one-minute Apgar score for a newborn male infant and determines that his heart rate is 150 beats/minute, he has a vigorous cry, his muscle tone is good with total flexion, he has quick reflex irritability, and his color is dusky and cyanotic. What Apgar score should the nurse assign to the infant?
- A. 8
- B. 9
- C. 6
- D. 7
Correct answer: A
Rationale: The correct answer is A: 8. The Apgar score is calculated based on five parameters: heart rate, respiratory effort, muscle tone, reflex irritability, and color. In this case, the infant has a good heart rate, vigorous cry, good muscle tone, and quick reflex irritability, which would total to 8. The only factor affecting the score is the cyanotic color, which could indicate potential respiratory or circulatory issues. Choices B, C, and D are incorrect as they do not reflect the overall assessment provided in the scenario.
5. Based on the information provided in this client’s medical record during labor, which intervention should the nurse implement?
- A. Apply oxygen at 10 L per minute via mask
- B. Stop the oxytocin infusion
- C. Turn the client to the right lateral position
- D. Continue monitoring the progress of labor
Correct answer: C
Rationale: Turning the client to the right lateral position is essential as it can improve fetal oxygenation and uterine blood flow, promoting better labor outcomes. This intervention helps relieve pressure on blood vessels, enhancing blood flow to the placenta and improving oxygen supply to the fetus. Applying oxygen at a specific rate may not address the underlying issue of compromised blood flow and oxygenation. Stopping the oxytocin infusion is not the priority unless medically indicated as it can affect labor progression. While monitoring the progress of labor is important, actively addressing the compromised fetal oxygenation and uterine blood flow by changing the client's position takes precedence in this scenario.
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