A child with asthma has the following medication ordered: Theophylline 4 mg/kg/dose every 6 hrs. The child weighs 4.69 kg. Calculate the appropriate dose.
33.6 mg
18.7 mg
8.4 mg
19 mg
The Correct Answer is B
To calculate the appropriate dose of Theophylline for the child weighing 4.69 kg:
Dose = Weight (kg) × Dose (mg/kg)
Dose = 4.69 kg × 4 mg/kg
Dose = 18.76 mg
So, the appropriate dose is approximately 18.7 mg.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. "I will use powders & lotion on his skin around the harness clasps."
This statement indicates a misunderstanding. Powders and lotions should generally be avoided around the harness clasps because they can interfere with the proper fit of the harness and cause irritation or discomfort to the baby's skin.
B. “I will remove the harness daily, prior to giving the bath.”
This statement is incorrect. The Pavlik harness is typically not removed for bathing, as it needs to be worn continuously to maintain proper positioning of the hips and promote optimal healing. Removing the harness daily for bathing can disrupt the treatment process and delay progress.
C. "I will adjust the harness straps every day."
This statement indicates a misunderstanding. The harness should not be adjusted daily without guidance from the healthcare provider. The straps of the Pavlik harness are initially adjusted by the healthcare provider to ensure proper fit, and they should remain in place without frequent adjustments to maintain stability and effectiveness.
D. "I will check my baby's skin under the straps frequently."
This statement indicates an understanding of the teaching. It is essential for the mother to regularly check her baby's skin under the harness straps for any signs of irritation, redness, or pressure sores. Monitoring the skin closely allows for early detection of any issues that may arise from wearing the harness.

Correct Answer is C
Explanation
A. Overriding aorta: In Tetralogy of Fallot, the aorta is positioned over the ventricular septal defect (VSD), rather than solely over the left ventricle as it would be in a normal heart. This is called overriding aorta, which allows blood from both the right and left ventricles to enter the aorta.
B. Pulmonary stenosis: This is a critical component of Tetralogy of Fallot. Pulmonary stenosis refers to narrowing of the pulmonary valve or the area just below it, which restricts blood flow from the right ventricle to the pulmonary artery. This results in decreased blood flow to the lungs for oxygenation.
C. Left ventricular hypertrophy: This choice is not typically associated with Tetralogy of Fallot. Left ventricular hypertrophy refers to an enlargement or thickening of the muscular wall of the left ventricle of the heart. It is often seen in conditions where the left ventricle has to work harder to pump blood, such as in hypertension or aortic stenosis, but it is not a characteristic feature of Tetralogy of Fallot.
D. Ventricular septal defect: This defect is one of the four components of Tetralogy of Fallot. A ventricular septal defect (VSD) is a hole in the septum, the muscular wall that separates the left and right ventricles of the heart. In Tetralogy of Fallot, the VSD allows oxygen-poor blood from the right ventricle to flow directly into the left ventricle and out to the body.

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