HESI LPN
Community Health HESI Practice Exam
1. When caring for premature newborns in an intensive care setting, a nurse carefully monitors oxygen concentration. What is the most common complication of this therapy?
- A. Intraventricular hemorrhage
- B. Retinopathy of prematurity
- C. Bronchopulmonary dysplasia
- D. Necrotizing enterocolitis
Correct answer: B
Rationale: Retinopathy of prematurity is the most common complication in premature infants exposed to high concentrations of oxygen. This condition leads to abnormal blood vessel growth in the retina, which can potentially result in blindness if not managed promptly. Intraventricular hemorrhage, though a significant concern in premature infants, is not directly related to oxygen therapy. Bronchopulmonary dysplasia is primarily associated with mechanical ventilation and oxygen exposure over time, not specifically with oxygen concentration monitoring. Necrotizing enterocolitis is more linked to gastrointestinal issues and is not the most common complication of oxygen therapy in premature newborns.
2. To prevent keratitis in an unconscious client, where should the nurse apply moisturizing ointment?
- A. Finger and toenail quicks
- B. Eyes
- C. Perianal area
- D. External ear canals
Correct answer: B
Rationale: The correct answer is B: Eyes. Applying moisturizing ointment to the eyes helps prevent keratitis, a condition that can occur due to inadequate blinking in unconscious clients, leading to corneal dryness and potential damage. Choices A, C, and D are incorrect as moisturizing ointment should not be applied to finger and toenail quicks, perianal area, or external ear canals to prevent keratitis.
3. A traditional plant used to lower uric acid is used by Rosario, a 55-year-old client with rheumatism. This herbal plant called “ulasimang bato” is commonly known as:
- A. Lagundi
- B. Pancit pacitan
- C. Bayabas
- D. Sambong
Correct answer: B
Rationale: The correct answer is B, Pancit pacitan (Peperomia pellucida), which is known for its uric acid-lowering properties. Ulasimang bato is the local name for this traditional plant. Choices A, C, and D are incorrect. Lagundi (Choice A) is commonly used for its antitussive and anti-asthmatic properties. Bayabas (Choice C) refers to guava, which is known for its high vitamin C content and other health benefits. Sambong (Choice D) is used for its diuretic properties and is often utilized for kidney health.
4. What is the measure of the number of new cases of a disease in a specific population during a certain time period called?
- A. Prevalence
- B. Incidence
- C. Mortality rate
- D. Morbidity rate
Correct answer: B
Rationale: The correct answer is B, Incidence. Incidence refers to the number of new cases of a disease in a specific population during a certain time period. Prevalence (choice A) refers to the total number of cases of a disease in a population at a specific point in time. Mortality rate (choice C) is the measure of the number of deaths in a particular population due to a specific cause. Morbidity rate (choice D) is a broader term that encompasses the incidence and prevalence of a disease in a population.
5. 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.
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