HESI LPN
Pediatrics HESI 2023
1. What is an important nursing responsibility when a dysrhythmia is suspected?
- A. order an immediate electrocardiogram
- B. count the radial pulse every 1 minute for five times
- C. count the apical pulse for 1 full minute, and compare the rate with the radial pulse rate
- D. have someone else take the radial pulse simultaneously with the apical pulse
Correct answer: C
Rationale: When a dysrhythmia is suspected, an important nursing responsibility is to count the apical pulse for 1 full minute and then compare this rate with the radial pulse rate. This method helps in identifying dysrhythmias as it allows for a direct comparison of the heart's rhythm at two different pulse points. Ordering an immediate electrocardiogram (Choice A) may be necessary but should not be the first step. Counting the radial pulse multiple times (Choice B) is not as accurate as comparing rates directly. Having someone else take the radial pulse simultaneously (Choice D) may introduce errors and inconsistencies in the measurement.
2. When teaching a class about trisomy 21, the instructor would identify the cause of this disorder as:
- A. nondisjunction.
- B. X-linked recessive inheritance.
- C. genomic imprinting.
- D. autosomal dominant inheritance.
Correct answer: A
Rationale: The correct answer is A: nondisjunction. Trisomy 21, also known as Down syndrome, is caused by nondisjunction, which is an error in cell division leading to an extra copy of chromosome 21. This additional genetic material alters the course of development and causes the characteristics associated with Down syndrome. Choices B, C, and D are incorrect. X-linked recessive inheritance refers to genetic disorders carried on the X chromosome, genomic imprinting involves gene expression based on parental origin, and autosomal dominant inheritance relates to disorders caused by a dominant gene on one of the non-sex chromosomes. In the case of trisomy 21, the cause is specifically related to the error in chromosome division, making nondisjunction the most appropriate answer.
3. A child with a diagnosis of celiac disease is admitted to the hospital. What dietary restriction should the nurse teach the parents?
- A. Avoid dairy products
- B. Avoid gluten
- C. Avoid high-fat foods
- D. Avoid foods high in sugar
Correct answer: B
Rationale: The correct answer is B: 'Avoid gluten.' Children with celiac disease must follow a gluten-free diet to prevent symptoms and intestinal damage. Gluten is a protein found in wheat, barley, and rye, which triggers an immune response in individuals with celiac disease. Choices A, C, and D are incorrect because while some individuals with celiac disease may also have lactose intolerance or may need to manage fat or sugar intake for overall health, the primary dietary restriction for celiac disease is avoiding gluten to maintain gastrointestinal health.
4. A family has decided to withhold “extraordinary care” for a newborn with severe abnormalities. How should the nurse interpret this decision?
- A. The newborn has no rights.
- B. It is the same as euthanasia.
- C. It is illegal professional practice.
- D. The newborn is being allowed to die.
Correct answer: D
Rationale: Withholding extraordinary care in cases of severe abnormalities is a legal and ethical decision. It allows the newborn to die naturally without aggressive interventions. Choice A is incorrect because all individuals, including newborns, have rights. Choice B is incorrect because withholding extraordinary care is not equivalent to euthanasia, which involves actively ending a life. Choice C is incorrect because such decisions are legally and ethically permissible when made in consideration of the best interests of the newborn.
5. Which treatment is instituted for the therapeutic management of minimal change nephrotic syndrome?
- A. corticosteroids
- B. antihypertensive agents
- C. long-term diuretics
- D. increased fluids to promote diuresis
Correct answer: A
Rationale: Corticosteroids are the mainstay of treatment for minimal change nephrotic syndrome as they help reduce inflammation and decrease proteinuria. Antihypertensive agents are used to manage high blood pressure often associated with kidney disease but are not the primary treatment for this condition. Long-term diuretics are not typically used in the management of minimal change nephrotic syndrome as they can worsen fluid and electrolyte imbalances. Increasing fluids to promote diuresis is not recommended in this condition as it can lead to further fluid retention and edema.
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