HESI LPN
HESI Focus on Maternity Exam
1. Chromosomes contain thousands of segments called:
- A. nuclei.
- B. nodes.
- C. capillaries.
- D. genes.
Correct answer: D
Rationale: Chromosomes are structures composed of DNA and genes. Genes are the functional segments within chromosomes that encode specific traits and characteristics. The other choices ('nuclei,' 'nodes,' 'capillaries') do not accurately describe the segments found within chromosomes and are unrelated to their structure or function.
2. A healthcare professional is preparing to perform denture care for a client. Which of the following actions should the professional plan to take?
- A. Pull down and out at the back of the upper denture to remove.
- B. Brush the dentures with a toothbrush and denture cleaner.
- C. Rinse the dentures with hot water after cleaning them.
- D. Place the dentures in a clean, dry storage container after cleaning them.
Correct answer: B
Rationale: The correct answer is to brush the dentures with a toothbrush and denture cleaner. This action ensures effective cleaning of the dentures. Dentures should be rinsed with cool or lukewarm water, not hot water, to prevent damage. Placing the dentures in a clean, dry storage container is not the immediate next step after cleaning; they should be kept moist to prevent warping.
3. A nurse reviews a client's laboratory report and notes that the client's serum phosphorus level is 2.0 mg/dL. Which condition most likely caused this serum phosphorus level?
- A. Alcoholism
- B. Renal insufficiency
- C. Hypoparathyroidism
- D. Tumor lysis syndrome
Correct answer: A
Rationale: The correct answer is A: Alcoholism. Alcoholism can lead to hypophosphatemia due to poor dietary intake and other factors. Excessive alcohol consumption can result in malnutrition, particularly a deficiency in phosphorus. Choices B, C, and D are unlikely to cause low serum phosphorus levels. Renal insufficiency is more likely to cause hyperphosphatemia, hypoparathyroidism is associated with hypocalcemia rather than hypophosphatemia, and tumor lysis syndrome typically presents with hyperphosphatemia due to the release of intracellular phosphate.
4. A client with asthma is prescribed montelukast. The nurse should instruct the client that this medication is used for which purpose?
- A. Immediate relief of acute asthma attacks
- B. Long-term control of asthma symptoms
- C. Treatment of exercise-induced bronchospasm
- D. Immediate relief of allergic rhinitis symptoms
Correct answer: B
Rationale: Montelukast is a leukotriene receptor antagonist used for the long-term control of asthma symptoms by reducing inflammation in the airways. It is not typically used for immediate relief during acute asthma attacks, where short-acting bronchodilators are more appropriate. Montelukast does not specifically target exercise-induced bronchospasm or allergic rhinitis symptoms. Therefore, the correct answer is B. Choice A is incorrect because montelukast is not for immediate relief of acute asthma attacks. Choice C is incorrect as montelukast is not primarily used to treat exercise-induced bronchospasm. Choice D is incorrect because montelukast is not indicated for immediate relief of allergic rhinitis symptoms.
5. Which action should the nurse include in the plan of care for a client receiving acyclovir (Zovirax) IV for treatment of herpes zoster (shingles)?
- A. Initiate cardiac telemetry monitoring
- B. Maintain continuous pulse oximetry
- C. Perform capillary glucose measurements
- D. Monitor serum creatinine levels
Correct answer: D
Rationale: The correct answer is D: Monitor serum creatinine levels. Acyclovir can lead to nephrotoxicity, making it essential to monitor kidney function through serum creatinine levels. While cardiac telemetry monitoring (choice A) and maintaining continuous pulse oximetry (choice B) are important in certain conditions, they are not directly related to acyclovir therapy for herpes zoster. Performing capillary glucose measurements (choice C) is not a priority when administering acyclovir for herpes zoster. Monitoring serum creatinine levels is crucial to detect any potential renal issues early, as the drug's nephrotoxic potential requires close monitoring of kidney function.