A nurse is preparing to administer amoxicillin 30 mg/kg/day divided equally every 12 hr to a toddler who weighs 33 lb. Available is amoxicillin 200 mg/5 mL suspension. How many mL should the nurse administer? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A) Absence of proteinuria:

Chronic glomerulonephritis often involves damage to the glomeruli in the kidneys, which can lead to the leakage of protein into the urine, resulting in proteinuria. The absence of proteinuria would be an unexpected finding in a patient with chronic glomerulonephritis. Therefore, this choice is incorrect.

B) Serum phosphorus 4.0 mg/dL (within expected reference range):

Serum phosphorus levels within the expected reference range are not directly related to chronic glomerulonephritis. While abnormalities in electrolyte levels might occur due to kidney dysfunction, serum phosphorus within the normal range is not a hallmark finding of glomerulonephritis. Therefore, this choice is incorrect.

C) Serum potassium 3.8 mEq/L (within the expected reference range):

Similar to serum phosphorus, serum potassium levels within the normal range are not specific to chronic glomerulonephritis. Kidney dysfunction can indeed affect electrolyte levels, but a serum potassium level within the normal range doesn't provide specific information about glomerulonephritis. Therefore, this choice is incorrect.

D) BUN 50 mg/dL (elevated):

Blood Urea Nitrogen (BUN) is a waste product that is filtered by the kidneys. Elevated BUN levels indicate impaired kidney function, as the kidneys are less efficient at filtering and excreting waste products. Chronic glomerulonephritis can lead to progressive kidney damage, which can result in elevated BUN levels due to decreased filtration and clearance. Therefore, an elevated BUN level is an expected finding in a patient with chronic glomerulonephritis.

Digoxin is a medication commonly used to treat certain heart conditions, including some congenital heart defects. It's important to monitor the heart rate and other signs of toxicity when administering digoxin, especially in pediatric patients. Let's break down the information given:

The pediatric maintenance dose of digoxin is 5 mcg/kg daily.

The child weighs 55 pounds (approximately 25 kg).

Given these values, the total daily dose for this child would be:

Total daily dose = 5 mcg/kg × 25 kg = 125 mcg

This total daily dose is usually given as a single dose. However, the child's heart rate is noted to be only 50 beats per minute (bpm). A heart rate of 50 bpm in a child could potentially indicate bradycardia (slow heart rate), which can be a sign of digoxin toxicity. Bradycardia is a known adverse effect of digoxin, and it's important to assess for other signs of toxicity as well, such as nausea, vomiting, and changes in color vision.

In this case, it would be prudent to withhold the digoxin and assess the child further for signs of toxicity or bradycardia. The dose should not be administered until the healthcare provider is consulted and appropriate action is determined.

So, the correct answer is indeed NO. Administering the digoxin without considering the slow heart rate and the potential for toxicity could be unsafe for the child.