What is the earliest clinical manifestation of biliary atresia?
Vomiting.
Hepatomegaly.
Absence of stooling.
Jaundice.
The Correct Answer is D
The correct answer is Choice D: Jaundice.
Choice A rationale:
Vomiting can occur in biliary atresia due to the blockage of bile flow, but it is not the earliest clinical manifestation. Jaundice tends to precede vomiting and is a more characteristic early sign of biliary atresia.
Choice B rationale:
Hepatomegaly (enlargement of the liver) is a common finding in biliary atresia, but it usually occurs after the onset of jaundice. Jaundice is an earlier and more specific manifestation of this condition.
Choice C rationale:
Absence of stooling is a sign that might occur in biliary atresia due to the obstructed bile flow, but it is not typically the earliest clinical manifestation. Jaundice is generally the first noticeable sign.
Choice D rationale:
Jaundice is the earliest clinical manifestation of biliary atresia. It is caused by the buildup of bilirubin in the blood due to impaired bile flow from the liver. The jaundice in biliary atresia is typically progressive and can be one of the key indicators for further evaluation and diagnosis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
The correct answer is choice C. Asthma.
Choice A rationale:
A foreign body in the trachea can cause acute respiratory distress and a sudden cough, but it is unlikely to cause chronic nonproductive cough and diffuse wheezing during the expiratory phase of respiration. The symptoms in the scenario are more suggestive of a chronic condition.
Choice B rationale:
Bronchiolitis primarily affects infants and young children, causing symptoms such as fever, rhinorrhea, and wheezing. While wheezing can be present, the diffuse wheezing during the expiratory phase described in the scenario is more characteristic of asthma.
Choice C rationale:
Asthma is characterized by chronic inflammation of the airways, leading to episodes of bronchoconstriction and increased airway reactivity. The chronic, nonproductive cough and diffuse wheezing during the expiratory phase are classic signs of asthma. Expiratory phase wheezing occurs due to the narrowing of the smaller airways during expiration.
Choice D rationale:
Pneumonia is an infection of the lung tissue and can cause productive cough, fever, and crackles on auscultation. While wheezing might occur in pneumonia due to inflammation and narrowing of the airways, it's not the most likely cause of the symptoms described in the scenario.
Correct Answer is A
Explanation
The correct answer is choice A. The cuff bladder covers 50% to 66% of the length of the upper arm.
Choice A rationale:
Selecting a blood pressure cuff with a bladder that covers 50% to 66% of the length of the upper arm is the appropriate criterion for determining the cuff size for a 2-year-old boy. This range ensures accurate blood pressure measurement by ensuring a proper fit on the arm. If the cuff bladder is too small or too large, it can result in inaccurate readings.
Choice B rationale:
The label "toddler" on the cuff might be helpful in identifying the intended age group, but it doesn't provide precise measurements for cuff sizing. Relying solely on a label might not account for variations in arm sizes within the toddler age group.
Choice C rationale:
The cuff bladder width being 40% of the circumference of the upper arm might not be as accurate as the length-based criterion. A cuff that fits the arm's length is more critical in ensuring proper inflation and accurate blood pressure measurement.
Choice D rationale:
The cuff bladder length covering 80% to 100% of the circumference of the upper arm might result in an excessively large cuff for a 2-year-old, which can lead to inaccurate readings. Length-based sizing is more appropriate for accuracy in this scenario.
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