HESI LPN
Community Health HESI Practice Exam
1. A child and his family were exposed to Mycobacterium tuberculosis about 2 months ago. To confirm the presence or absence of an infection, it is most important for all family members to have a
- A. Chest x-ray
- B. Blood culture
- C. Sputum culture
- D. PPD intradermal test
Correct answer: D
Rationale: The PPD (purified protein derivative) intradermal test is the standard screening method for detecting tuberculosis infection. It helps identify individuals who have been infected with Mycobacterium tuberculosis. A chest x-ray (Choice A) is used to assess the extent of active disease, not for screening purposes. Blood culture (Choice B) is not typically used for tuberculosis screening. Sputum culture (Choice C) is used to confirm active tuberculosis in symptomatic individuals, not for initial screening purposes.
2. A client with rheumatoid arthritis is receiving methotrexate (Rheumatrex). The nurse should monitor the client for which of the following adverse effects?
- A. Leukopenia
- B. Hyperglycemia
- C. Hypertension
- D. Hypokalemia
Correct answer: A
Rationale: The correct answer is A: Leukopenia. Methotrexate, used in the treatment of rheumatoid arthritis, can lead to bone marrow suppression, resulting in leukopenia. This condition increases the risk of infections due to decreased white blood cell count. Choices B, C, and D are incorrect because methotrexate is not known to cause hyperglycemia, hypertension, or hypokalemia as its primary adverse effects.
3. What is the most common cause of vaginal bleeding immediately after birth?
- A. Uterine atony
- B. Genital lacerations
- C. Abnormal clotting mechanism
- D. Endometritis
Correct answer: A
Rationale: Vaginal bleeding immediately after birth is most often due to uterine atony, which is the failure of the uterus to contract following delivery. This results in inadequate compression of blood vessels at the placental site, leading to hemorrhage. Genital lacerations and abnormal clotting mechanisms can also cause bleeding but are less common immediately after birth compared to uterine atony. Endometritis, inflammation of the lining of the uterus, usually presents with symptoms like fever and pelvic pain rather than immediate postpartum bleeding.
4. Which of the following statements can motivate a couple to practice family planning?
- A. Family planning helps families improve their standard of living.
- B. Family planning reduces or eliminates fear of unwanted pregnancies.
- C. Family planning affords family members time to study or pursue personal interests.
- D. All of the above
Correct answer: D
Rationale: The correct answer is D because all the listed statements provide valid reasons to motivate couples to practice family planning. Option A highlights how family planning can lead to an improvement in the standard of living by allowing families to better manage their resources. Option B emphasizes the importance of family planning in reducing or eliminating the fear of unwanted pregnancies, which can have significant emotional and financial implications for couples. Option C points out that family planning can also afford family members time to focus on personal development, such as studying or pursuing personal interests, without the added responsibilities of unplanned pregnancies. Therefore, all these factors combined can serve as strong motivators for couples to consider and practice family planning. Choices A, B, and C are incorrect because each of them individually provides a valid reason to motivate couples, making the comprehensive answer D the most appropriate.
5. A young child is admitted for treatment of lead poisoning. The nurse recognizes that the most serious effect of chronic lead poisoning is
- A. Central nervous system damage
- B. Moderate anemia
- C. Renal tubule damage
- D. Growth impairment
Correct answer: A
Rationale: Corrected Rationale: Chronic lead poisoning can lead to severe and irreversible damage to the central nervous system, including cognitive and developmental delays. Central nervous system damage is the most serious effect of chronic lead poisoning because it can have long-lasting consequences on a child's cognitive function and overall development. Moderate anemia (Choice B), renal tubule damage (Choice C), and growth impairment (Choice D) can also occur due to lead poisoning, but they are not as severe or potentially irreversible as the damage to the central nervous system.
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