Nokea
The mother of a child who has been diagnosed with varicella asks the nurse when the child can return to school. When is the child no longer contagious?
- A. When the fever dissipates
- B. After the incubation period
- C. When the lesions have healed
- D. When the lesions are crusted over
Correct Answer: D
Rationale: The correct answer is D: 'When the lesions are crusted over.' Varicella is no longer contagious once the lesions are dry and crusted. This stage indicates that the active viral shedding has significantly decreased, reducing the risk of transmission. Choice A, 'When the fever dissipates,' is incorrect because the presence of fever does not necessarily correlate with the contagiousness of varicella. Choice B, 'After the incubation period,' is incorrect as the incubation period occurs before the onset of symptoms and is not relevant to determining contagiousness. Choice C, 'When the lesions have healed,' is incorrect as healed lesions can still be contagious if they are not crusted over.
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When caring for a 7-week-old infant with hypothyroidism, the nurse explains that the prevention of what complication is dependent on the administration of oral thyroid replacement therapy and is critical for the child?
- A. Excessive growth
- B. Cognitive impairment
- C. Damage to the nervous system
- D. Damage to the urinary system
Correct Answer: B
Rationale: The correct answer is B: Cognitive impairment. The treatment of choice for congenital and acquired hypothyroidism is oral thyroid hormone replacement therapy. Prompt treatment is especially critical in the infant with congenital hypothyroidism to avoid permanent cognitive impairment. Excessive growth (Choice A) is not a common complication of hypothyroidism in infants. Damage to the nervous system (Choice C) and damage to the urinary system (Choice D) are not typically associated with untreated hypothyroidism in infants.
Which other congenital defects are common in children with Down syndrome?
- A. Hypospadias
- B. Pyloric stenosis
- C. Heart defects
- D. Hip dysplasia
Correct Answer: C
Rationale: The correct answer is C: Heart defects. Many children with Down syndrome are born with congenital heart defects. These heart abnormalities are more prevalent in individuals with Down syndrome than in the general population. Choices A, B, and D are incorrect because while they may be congenital defects in children, they are not commonly associated with Down syndrome. Hypospadias is a urogenital condition, pyloric stenosis affects the stomach, and hip dysplasia involves the hip joint, but these are not typically seen as frequently as heart defects in children with Down syndrome.
The nurse is caring for a client with a nasogastric tube. Which action should the nurse take to ensure proper functioning of the tube?
- A. Flush the tube with 50 mL of normal saline every 8 hours
- B. Clamp the tube when not in use
- C. Position the client in a supine position
- D. Verify tube placement by checking pH of gastric contents
Correct Answer: D
Rationale: Verifying tube placement by checking the pH of gastric contents is crucial to ensure the nasogastric tube is correctly positioned in the stomach. This action helps prevent complications such as aspiration. Flushing the tube with normal saline every 8 hours is not necessary for ensuring proper functioning of the tube. Clamping the tube when not in use may lead to the build-up of gastric secretions and blockages. Positioning the client in a supine position is not directly related to ensuring the proper functioning of the nasogastric tube.
The nurse reports that a client is at risk for a brain attack (stroke) based on which assessment finding?
- A. Nuchal rigidity
- B. Carotid bruit
- C. Jugular vein distention
- D. Palpable cervical lymph node
Correct Answer: B
Rationale: The correct answer is B: Carotid bruit. A carotid bruit is a significant risk factor for stroke as it indicates turbulent blood flow due to narrowing of the carotid artery. Nuchal rigidity is associated with meningitis, jugular vein distention can be a sign of heart failure, and palpable cervical lymph nodes may indicate infection, but they are not directly linked to stroke risk.
A client with asthma is prescribed a metered-dose inhaler (MDI) with albuterol. Which instruction is essential for the nurse to provide?
- A. Use the inhaler only before bedtime
- B. Shake the inhaler well before use
- C. Exhale fully before inhaling the medication
- D. Take two puffs every hour
Correct Answer: B
Rationale: The correct answer is to 'Shake the inhaler well before use.' This instruction is crucial as shaking the inhaler ensures the proper mixing of the medication, which is essential for its effective delivery. Option A is incorrect because using the inhaler only before bedtime may not provide adequate relief during the day. Option C is incorrect as exhaling fully is a good practice but not the most essential instruction. Option D is incorrect as taking two puffs every hour may exceed the recommended dosage and lead to adverse effects.