Nursing Elites

1. Which is the most frequently used test for measuring visual acuity?

• A. Snellen letter chart
• B. Ishihara vision test
• C. Allen picture card test
• D. Denver eye screening test

Correct answer: A

Rationale: The Snellen letter chart is the most commonly used test for measuring visual acuity, particularly in school-age children and adults.

2. The mother of an infant diagnosed with bronchiolitis asks the nurse what causes the disease. How should the nurse respond?

• A. Respiratory syncytial virus (RSV)
• B. Haemophilus influenzae
• C. Parainfluenza
• D. Rotavirus

Correct answer: A

Rationale: The correct answer is A: Respiratory syncytial virus (RSV). RSV is the most common cause of bronchiolitis, especially in infants. Bronchiolitis is characterized by inflammation of the small airways in the lungs. Choice B, Haemophilus influenzae, is a bacterium that can cause respiratory infections but is not the primary cause of bronchiolitis. Choice C, Parainfluenza, is a common viral infection that can cause croup and other respiratory illnesses but is not the main cause of bronchiolitis. Choice D, Rotavirus, is a virus that primarily affects the gastrointestinal system, causing diarrhea and vomiting, and is not associated with bronchiolitis.

3. The Denver II is a test used to assess children. What does it evaluate?

• A. Behavior problems
• B. Developmental status
• C. Body mass index
• D. Infection likelihood

Correct answer: B

Rationale: The Denver II Developmental Screening Test is used to assess a child's development in four areas: personal-social, fine motor-adaptive, language, and gross motor skills. It helps identify children who may need further evaluation. Choice A, behavior problems, is incorrect as the Denver II primarily focuses on developmental milestones rather than behavior. Choice C, body mass index, is unrelated to the assessment of child development. Choice D, infection likelihood, is also not evaluated by the Denver II test.

4. The nurse is preparing an airborne infection isolation room for a patient. Which communicable disease does the patient likely have?

• A. Varicella
• B. Pertussis
• C. Influenza
• D. Scarlet fever

Correct answer: A

Rationale: Varicella (chickenpox) is an airborne infectious disease, requiring isolation to prevent the spread of the virus.

5. A child is admitted with renal failure. Which of these findings should the nurse expect?

• A. Decreased BUN
• B. Azotemia and oliguria
• C. Increased glomerular filtration rate (GFR)
• D. Polyuria and elevated creatinine clearance

Correct answer: B

Rationale: Azotemia (elevated BUN and creatinine) and oliguria (reduced urine output) are classic signs of renal failure, indicating impaired kidney function. In renal failure, the kidneys are unable to effectively filter waste products, leading to an increase in BUN and creatinine levels in the blood. Additionally, oliguria occurs due to decreased kidney function. Increased GFR (Choice C) is not expected in renal failure as it signifies improved kidney function, which is not the case in renal failure. Polyuria and elevated creatinine clearance (Choice D) are not typical findings in renal failure. Polyuria is more commonly associated with conditions like diabetes insipidus, while elevated creatinine clearance would indicate increased kidney function, which is contrary to the impaired function seen in renal failure.

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