A nurse is preparing to administer digoxin 12 mcg/kg/day PO to divide equally every 12 hr to a school-age child who weighs 66 lb. Available is digoxin elixir 0.05 mg/mL. How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

Answer and Explanation

The Correct Answer is ["3.6"]

To calculate the dosage of digoxin for the child, first convert the child's weight from pounds to kilograms, knowing that 1 kilogram equals 2.2 pounds. The child weighs 66 pounds, which is approximately 30 kilograms (66 ÷ 2.2). The prescribed dose is 12 micrograms per kilogram per day, which equals 360 micrograms per day (12 mcg × 30 kg). Since the dose is divided every 12 hours, the child should receive 180 micrograms every 12 hours. The digoxin elixir is available at a concentration of 0.05 mg/mL, which is the same as 50 micrograms per milliliter. To find out how many milliliters to administer per dose, divide the dose in micrograms by the concentration: 180 mcg ÷ 50 mcg/mL equals 3.6 mL.

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Correct Answer is D

Explanation

A. A bulging fontanel indicates increased intracranial pressure or fluid overload, not dehydration. With dehydration, you expect a sunken fontanel.

B. Bradypnea (slow breathing) is not typically associated with dehydration and may indicate other issues.

C. A capillary refill time of 3 seconds suggests delayed perfusion, but it is not as indicative of severe dehydration as other signs.

D. Severity of dehydration is classified by percentage of body weight lost:Severe: ≥10% loss, moderate: 6–9% loss, mild: 3–5% loss. A 13% loss = severe dehydration, which matches the scenario.

A. Nighttime symptoms occur approximately twice a month. B. Peak expiratory flow (PEF) is greater than or equal to 80% of the predicted value. C. Symptoms are continuous throughout the day. D. Minor limitations occur with normal activity. E. Daytime symptoms occur more than twice a week.

Correct Answer is ["B","D","E"]

Explanation

A. Nighttime symptoms occurring twice a month is more characteristic of intermittent asthma rather than mild persistent asthma, which might present with nighttime symptoms more frequently.

B. In mild persistent asthma, the peak expiratory flow (PEF) is typically greater than or equal to 80% of the predicted value, indicating relatively good control of asthma symptoms.

C. Continuous symptoms throughout the day are not typical for mild persistent asthma; symptoms usually occur intermittently.

D. Minor limitations with normal activity are expected in mild persistent asthma, as the condition can cause some restrictions in daily activities but not severe impairments.

E. Daytime symptoms occur more than twice a week. This is a key feature of mild persistent asthma. Intermittent asthma = ≤2 days/week. Daily symptoms would indicate moderate persistent.

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Naxlex Comprehensive Predictor Exams

A nurse is admitting an infant who has severe dehydration from acute gastroenteritis. Which of the following findings should the nurse expect?

Correct Answer is D

Explanation

A nurse is caring for a school-age child who has mild persistent asthma. Which of the following is an expected finding? (Select all that apply.)

Correct Answer is ["B","D","E"]

Explanation

A parent of a toddler asks a nurse at a well-child visit how the child's frequent temper tantrums can best be handled. Which of the following actions should the nurse suggest to the parent?

When planning care for children, the nurse knows that which factor has the largest impact but is not able to be altered to influence the growth and development of children?

A nurse is presenting an in-service about the use of postural drainage for infants who have cystic fibrosis. Which of the following positions should the nurse identify as being contraindicated for the infant?

A nurse is teaching the parents of a child with frequent nosebleeds how to care for the child. Which statement by the parents indicate that the parents have understood the teaching?

A nurse is caring for a 4-year-old child who has a new diagnosis of diabetes mellitus and is distressed after an insulin injection. Which of the following play activities should the nurse recognize is therapeutic in helping the child deal with the injection?