HESI LPN
CAT Exam Practice
1. After medicating the client for pain and collecting granules and stones from strained urine, which action is most important for the nurse to implement next?
- A. Send the calculi for laboratory analysis of stone composition.
- B. Evaluate the client for persistent pain.
- C. Assess the clarity of urine.
- D. Encourage high fluid intake to produce urine output of 2L/day.
Correct answer: A
Rationale: Sending the calculi for analysis is crucial in determining the type of stone present. Identifying the stone composition helps in developing an effective treatment plan and preventive measures to avoid future episodes of urolithiasis. This step is essential in providing targeted care for the client. Options B, C, and D are not the most important actions at this point. While evaluating for persistent pain is essential, determining the stone composition takes precedence to guide appropriate interventions.
2. In what sequence should the nurse prepare the dose of insulin for a client whose finger stick glucose is 210 mg/dl and is receiving a sliding scale dose of short-acting insulin before breakfast?
- A. Clean the vial's rubber stopper with an alcohol swab, withdraw the correct dose of insulin, and then inject air equal to the insulin dose into the vial.
- B. Inject air equal to the insulin dose into the vial, withdraw the correct dose of insulin, and then clean the vial's rubber stopper with an alcohol swab.
- C. Withdraw the correct dose of insulin, inject air equal to the insulin dose into the vial, and then clean the vial's rubber stopper with an alcohol swab.
- D. Clean the vial's rubber stopper with an alcohol swab, inject air equal to the insulin dose into the vial, and then withdraw the correct dose of insulin.
Correct answer: A
Rationale: The correct sequence for preparing a dose of insulin involves ensuring proper aseptic technique. First, clean the vial's rubber stopper with an alcohol swab to prevent contamination. Second, withdraw the correct dose of insulin to be administered. Lastly, inject air equal to the insulin dose into the vial to maintain proper pressure for withdrawing the medication. This sequence ensures the medication is prepared safely and accurately. Choice A is correct as it follows this sequence. Choices B, C, and D present incorrect sequences that may compromise patient safety by not following the correct aseptic technique. Choice B injects air into the vial before withdrawing insulin, which is incorrect. Choice C reverses the order of withdrawing insulin and injecting air. Choice D withdraws the insulin before injecting air, which can affect the pressure inside the vial and lead to inaccurate dosing.
3. Which client’s vital signs indicate increased intracranial pressure (ICP) that the nurse should report to the healthcare provider?
- A. P 70, BP 120/60 mmHg; P 100, BP 90/60 mmHg; rapid respirations.
- B. P 55, BP 160/70 mmHg; P 50, BP 194/70 mmHg; irregular respirations.
- C. P 130, BP 190/90 mmHg; P 136, BP 200/100 mmHg; Kussmaul respirations.
- D. P 110, BP 130/70 mmHg; P 100, BP 110/70 mmHg; shallow respirations.
Correct answer: C
Rationale: Choice C is the correct answer. The vital signs presented (P 130, BP 190/90 mmHg; P 136, BP 200/100 mmHg; Kussmaul respirations) indicate increased intracranial pressure (ICP), which can be a serious condition requiring immediate medical attention. Kussmaul respirations are deep and labored breathing patterns associated with metabolic acidosis and can be a late sign of increased ICP. Choices A, B, and D do not demonstrate vital sign patterns consistent with increased ICP. Choice A shows variations in blood pressure and pulse rate but does not provide a clear indication of increased ICP. Choice B displays fluctuations in blood pressure and pulse rate with irregular respirations, but these vital signs do not specifically suggest increased ICP. Choice D presents relatively stable vital signs with shallow respirations, which do not align with the typical vital signs seen in increased ICP.
4. Where should the nurse choose as the best location to begin a screening program for hypothyroidism?
- A. A business and professional women's group.
- B. An African-American senior citizens center.
- C. A daycare center in a Hispanic neighborhood.
- D. An after-school center for Native-American teens.
Correct answer: B
Rationale: The best location for beginning a screening program for hypothyroidism would be an African-American senior citizens center. This choice is the most suitable as hypothyroidism is more prevalent among older adults, and African-American seniors are at a higher risk for this condition due to various factors like genetics and lifestyle. Choices A, C, and D are less appropriate because hypothyroidism is not specifically linked to business and professional women, Hispanic children, or Native-American teens. Targeting the high-risk group, which in this case, are African-American seniors, increases the chances of successful screening and early detection.
5. A male client approaches the nurse with an angry expression on his face and raises his voice, saying, “My roommate is the most selfish, self-centered, angry person I have ever met. If he loses his temper one more time with me, I am going to punch him out.†The nurse recognizes that the client is using which defense mechanism?
- A. Denial
- B. Splitting
- C. Projection
- D. Rationalization
Correct answer: C
Rationale: The client is projecting his feelings of anger and frustration onto his roommate, attributing his own feelings to the other person. Projection is a defense mechanism where individuals attribute their thoughts, feelings, or motives onto another person. In this scenario, the client is displacing his anger onto his roommate, thereby using projection as a defense mechanism. Denial (choice A) is refusing to acknowledge an aspect of reality. Splitting (choice B) involves viewing people as all good or all bad. Rationalization (choice D) is creating logical explanations to justify unacceptable behavior.
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