HESI LPN
Community Health HESI Test Bank
1. A 6-month-old infant who is being treated for developmental dysplasia of the hip has been placed in a hip spica cast. The nurse should teach the parents to
- A. Gently rub the skin with a cotton swab to relieve itching
- B. Place the favorite books and push-pull toys in the crib
- C. Check every few hours for the next day or 2 for swelling in the baby's feet
- D. Turn the baby with the abduction stabilizer bar every 2 hours
Correct answer: C
Rationale: The correct answer is to check every few hours for the next day or 2 for swelling in the baby's feet. Swelling in the baby's feet could indicate compromised circulation due to the cast, and frequent checks are necessary to ensure that there are no complications. Choices A, B, and D are incorrect because rubbing the skin with a cotton swab, placing favorite items in the crib, and turning the baby with the abduction stabilizer bar do not address the potential issue of compromised circulation and swelling in the baby's feet.
2. While assessing an Rh-positive newborn whose mother is Rh-negative, the nurse recognizes the risk for hyperbilirubinemia. Which of the following should be reported immediately?
- A. Jaundice evident at 26 hours
- B. Hematocrit of 55%
- C. Serum bilirubin of 12 mg/dL
- D. Positive Coombs test
Correct answer: C
Rationale: A serum bilirubin level of 12 mg/dL in a newborn is concerning and can indicate a significant risk of hyperbilirubinemia, which requires immediate medical intervention to prevent complications like kernicterus. Jaundice at 26 hours (Choice A) is a symptom, not a laboratory result, and needs monitoring but not an immediate report. Hematocrit of 55% (Choice B) may be elevated but is not indicative of hyperbilirubinemia. A positive Coombs test (Choice D) indicates the presence of antibodies on the newborn's red blood cells but does not directly correlate with the risk of hyperbilirubinemia.
3. A client is admitted with a diagnosis of myocardial infarction (MI). The client is complaining of chest pain. The nurse knows that pain related to an MI is due to
- A. Insufficient oxygenation of the cardiac muscle
- B. Potential circulatory overload
- C. Left ventricular overload
- D. Electrolyte imbalance
Correct answer: A
Rationale: The correct answer is A: Insufficient oxygenation of the cardiac muscle. Myocardial infarction pain is primarily caused by inadequate oxygen reaching the heart muscle, leading to ischemia and tissue damage. Choices B, C, and D are incorrect because circulatory overload, left ventricular overload, and electrolyte imbalance are not the primary causes of chest pain in myocardial infarction. Circulatory overload may lead to other symptoms like edema, left ventricular overload can result in heart failure symptoms, and electrolyte imbalance may present with various manifestations, but none of these directly cause the characteristic chest pain associated with an MI.
4. Which of the following measures the frequency of new cases of the phenomenon during a given period of time?
- A. prevalence rate
- B. proportionate mortality rate
- C. case fatality rate
- D. incidence rate
Correct answer: D
Rationale: The correct answer is D, incidence rate. Incidence rate measures the frequency of new cases of a phenomenon, providing important information about the risk of developing the condition. Prevalence rate (choice A) reflects both old and new cases, proportionate mortality rate (choice B) is the proportion of deaths due to a specific cause, and case fatality rate (choice C) measures the proportion of deaths among confirmed cases, not just new cases.
5. Which organization is primarily responsible for global public health?
- A. World Health Organization (WHO)
- B. Centers for Disease Control and Prevention (CDC)
- C. National Institutes of Health (NIH)
- D. United Nations (UN)
Correct answer: A
Rationale: The correct answer is A: World Health Organization (WHO). The WHO is the primary organization responsible for global public health initiatives, coordinating international health efforts, setting norms and standards, providing technical support, and monitoring health trends. Choices B, C, and D are incorrect because while they play significant roles in health and global affairs, they do not have the primary responsibility for global public health like the WHO does.
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