HESI LPN
CAT Exam Practice Test
1. While changing a client’s chest tube dressing, the nurse notes a crackling sensation when gentle pressure is applied to the skin at the insertion site. What is the best action for the nurse to take?
- A. Apply a pressure dressing around the chest tube insertion site
- B. Assess the client for allergies to topical cleaning agents
- C. Measure the area of swelling and crackling
- D. Administer an oral antihistamine per PRN protocol
Correct answer: A
Rationale: A crackling sensation indicates subcutaneous emphysema, caused by air trapped under the skin. Applying a pressure dressing around the chest tube insertion site can help manage the issue by preventing further air leakage into the tissues. Choice B is incorrect because the crackling sensation is not related to allergies. Choice C is incorrect as measuring the area does not address the underlying cause. Choice D is incorrect as administering an oral antihistamine is not indicated for subcutaneous emphysema.
2. 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.
3. A client is admitted to the intensive care unit with diabetes insipidus due to a pituitary gland tumor. Which potential complication should the nurse monitor closely?
- A. Hypokalemia
- B. Ketonuria
- C. Peripheral edema
- D. Elevated blood pressure
Correct answer: A
Rationale: The correct answer is A: Hypokalemia. In diabetes insipidus, there is excessive urination leading to fluid loss, which can result in electrolyte imbalances such as hypokalemia. Monitoring potassium levels is crucial to prevent complications like cardiac arrhythmias. Choices B, C, and D are incorrect. Ketonuria is typically seen in diabetic ketoacidosis, peripheral edema is more commonly associated with conditions like heart failure or kidney disease, and elevated blood pressure is not a direct complication of diabetes insipidus related to a pituitary gland tumor.
4. A client with leukemia who is receiving myelosuppressive chemotherapy has a platelet count of 25,000/mm3. Which intervention is most important for the nurse to include in this client’s plan of care?
- A. Monitor for signs of activity intolerance
- B. Require visitors to wear respiratory masks
- C. Assess urine and stool for occult blood
- D. Obtain client’s temperature q4 hours
Correct answer: C
Rationale: The correct answer is to assess urine and stool for occult blood. With a low platelet count, there is an increased risk of bleeding. Monitoring for occult blood is essential to detect any signs of internal bleeding. Choices A, B, and D are not the priority interventions in this situation. While monitoring for signs of activity intolerance, requiring visitors to wear respiratory masks, and obtaining the client's temperature are important aspects of care, they are not as critical as assessing for occult blood in a client with a low platelet count.
5. An adult male who admits to abusing IV drugs obtains the results of HIV testing. When informed that the results are positive, he states that he does not want his wife to know. What action should the nurse take?
- A. Tell the client he is required by law to inform his sexual partners of his HIV status
- B. Counsel the client about the importance of notifying his sexual partner
- C. Inform the wife of her health risk related to her husband's HIV results
- D. Report the client's status as a sexually transmitted case to the health department
Correct answer: B
Rationale: The nurse should counsel the client on the importance of notifying partners about HIV status while respecting confidentiality. Mandatory partner notification laws vary by jurisdiction, so option A cannot be universally applied. Breaching patient confidentiality, as suggested in option C, is unethical. Reporting the client's status to the health department without consent, as in option D, is not appropriate as HIV status is confidential information and is not automatically reported as a sexually transmitted case.
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