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. The nurse discontinues a continuous IV heparin infusion for a male client on strict bedrest and is now preparing to administer the client's first dose of enoxaparin. Prior to giving this subcutaneous injection, which assessment finding requires additional intervention by the nurse?
- A. Current lab report indicates an Aptt at 1.5 times the client's control
- B. The client states that his right calf is aching and wants pain medication
- C. The spouse is assisting the client who is shaving with an electric razor
- D. Several bruised areas are noted on the client's upper extremities bilaterally
Correct answer: D
Rationale: The correct answer is D. Bruised areas on the client's upper extremities bilaterally indicate an increased risk of bleeding, which requires careful assessment before administering enoxaparin. Bruising suggests potential issues with clotting and hemostasis, making it crucial for the nurse to further evaluate the client's bleeding risk. Choices A, B, and C do not directly relate to the assessment of bleeding risk associated with enoxaparin administration and are therefore incorrect. Choice A provides information about the client's Aptt, which is not directly relevant to assessing bleeding risk for enoxaparin. Choice B addresses pain management, and Choice C involves the client's daily activities with no direct link to the bleeding risk assessment.
3. A client is admitted to the labor and delivery unit in early labor, and the nurse assesses the status of her contractions. The frequency of contractions is most accurately evaluated by counting the minutes and seconds in which manner?
- A. From the peak of one contraction to the peak of the next contraction
- B. From the beginning of one contraction to the end of that contraction
- C. From the beginning of one contraction to the beginning of the next contraction
- D. From the end of one contraction to the beginning of the next contraction
Correct answer: C
Rationale: The frequency of contractions is measured from the beginning of one contraction to the beginning of the next contraction. This timing is crucial in determining the progress of labor. Choice A, measuring from peak to peak, is incorrect as it assesses the duration between the highest points of contractions, which is not how frequency is calculated. Choice B, measuring from the beginning to the end of one contraction, is incorrect as it does not consider the start of the next contraction. Choice D, measuring from the end of one contraction to the beginning of the next contraction, is incorrect as it misses the initial onset of the following contraction.
4. The nurse is preparing an older client for discharge following cataract extraction. Which instruction should be included in the discharge teaching?
- A. Do not read with direct lighting for 6 weeks
- B. Avoid straining during stool passage, bending, or lifting heavy objects
- C. Irrigate conjunctiva with ophthalmic saline after applying antibiotic ointment
- D. Limit exposure to sunlight during the first 2 weeks while the cornea is healing
Correct answer: B
Rationale: The correct instruction to include in the discharge teaching for a client following cataract extraction is to 'Avoid straining during stool passage, bending, or lifting heavy objects.' This is crucial to prevent increased intraocular pressure after surgery, which can be harmful. Reading with direct lighting can strain the eyes but is not the primary concern post-cataract surgery. Irrigating the conjunctiva before applying antibiotic ointment is not a standard practice and may not be necessary. While limiting sunlight exposure is important for eye protection, it is secondary to avoiding activities that can increase intraocular pressure.
5. A client with chronic kidney disease has an arteriovenous (AV) fistula in the left forearm. Which observation by the nurse indicates that the fistula is patent?
- A. Distended, tortuous veins in the left hand
- B. The left radial pulse is 2+ bounding
- C. Auscultation of a thrill on the left forearm
- D. Assessment of a bruit on the left forearm
Correct answer: C
Rationale: Auscultation of a thrill on the left forearm is the correct observation indicating that the AV fistula is patent. A thrill is a palpable vibration or buzzing sensation felt over the fistula, indicating the presence of blood flow. Choices A, B, and D do not directly assess the patency of the fistula. Distended, tortuous veins in the left hand may indicate venous hypertension; a bounding radial pulse could suggest increased blood flow through an artery, but it does not confirm fistula patency; assessment of a bruit indicates turbulent blood flow, but it does not confirm patency.
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