A nurse is reviewing the diagnostic findings for a preschool-age child who is suspected of having cystic fibrosis. Which of the following findings should the nurse identify as an indication of cystic fibrosis?
Sweat chloride content 85 mEq/L
72-hour stool analysis sample indicating hard, packed stools
Increased blood levels of fat-soluble vitamins
Chest x-ray negative for atelectasis
The Correct Answer is A
Choice A reason: A sweat chloride content of 85 mEq/L is indicative of cystic fibrosis, as normal values are below 30 mEq/L, and values above 60 mEq/L are diagnostic for cystic fibrosis.
Choice B reason: Hard, packed stools could be a sign of cystic fibrosis but are not as diagnostic as a sweat chloride test.
Choice C reason: Increased blood levels of fat-soluble vitamins are not typically associated with cystic fibrosis; patients often have deficiencies due to malabsorption.
Choice D reason: A chest x-ray negative for atelectasis does not indicate cystic fibrosis, as atelectasis can be present in many conditions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Digoxin is used to treat heart conditions by slowing the heart rate and increasing its efficiency. It does not increase the heart rate. The normal heart rate for a 12-month-old infant ranges from 80 to 160 beats per minute.
Choice B reason: If an infant vomits after taking digoxin, repeating the dose could lead to toxicity. Instead, caregivers should wait until the next scheduled dose or contact a healthcare provider for guidance.
Choice C reason: Administering digoxin at regular intervals ensures consistent therapeutic levels in the bloodstream, which is crucial for the medication's efficacy and safety.
Choice D reason: Offering fluids after medication does not interfere with digoxin's absorption. However, caregivers should be aware of the signs of digoxin toxicity, which include vomiting, lethargy, and bradycardia.
Correct Answer is C
Explanation
Choice A reason: A platelet count of 200,000/mm is within the normal range and does not need to be reported.
Choice B reason: A hematocrit of 40% is also within the normal range for a preschooler and does not require reporting.
Choice C reason: A blood protein level of 5.0 g/dL is low and indicative of nephrotic syndrome, which can lead to serious complications if not addressed.
Choice D reason: A hemoglobin level of 14.5 g/dL is within the normal range and does not need to be reported.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today