A client is ordered to receive 1000ml of 0.9% saline over 4 hours. At what rate will the nurse set the IV pump in mL/hr? (Enter a number only).
The Correct Answer is ["250"]
Identify the total volume:
The client is ordered to receive 1000 mL of 0.9% saline.
Identify the infusion time:
The infusion time is 4 hours.
Set up the calculation:
We need to find out the IV pump rate in mL/hr. We can use the following formula:
(Total volume) / (Infusion time) = IV pump rate
4. Plug in the values and calculate:
(1000 mL) / (4 hours) = 250 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["4"]
Explanation
1. Determine the concentration of the diphenhydramine:
The label states 12.5 mg/5 mL.
2. Set up a proportion to find the volume (in mL) needed:
12.5 mg / 5 mL = 10 mg / x mL
3. Solve for x:
Cross-multiply: 12.5x = 10 * 5
12.5x = 50
x = 50 / 12.5
x = 4 mL
Answer: The nurse should teach the parent to administer 4 mL.
Correct Answer is C
Explanation
A) The stomach acid has a lower pH level which results in increased absorption: While it is true that neonates have a lower gastric pH, which could affect the absorption of certain medications, this factor does not directly increase the risk for drug toxicity. Lower pH may increase absorption for some drugs, but it is not as critical in neonates as the immaturity of other organs, such as the liver and kidneys, which are responsible for drug metabolism and excretion.
B) The glomerular filtration rate (GFR) is increased causing rapid excretion: In neonates, the glomerular filtration rate (GFR) is actually decreased, not increased. This leads to slower excretion of medications, which can increase the risk for drug toxicity, especially for drugs that rely on renal elimination. This decreased renal function can result in accumulation of the drug in the bloodstream, potentially leading to toxicity.
C) The liver enzyme system responsible for drug metabolism is not fully developed: The liver enzyme system in neonates is immature, which significantly impacts the metabolism of drugs. Enzymatic activity is critical for breaking down medications to their active or inactive forms. Due to the underdeveloped liver function, drugs may not be metabolized properly, leading to a longer half-life and an increased risk for drug toxicity. This is a key factor in the increased risk of toxicity in neonatal clients.
D) The albumin levels are elevated due to rapid growth and protein binding is enhanced: Neonates typically have lower albumin levels, not elevated levels. Albumin is crucial for binding medications, and lower levels in neonates can result in more free (unbound) drug circulating in the bloodstream, which can increase the risk of drug toxicity. Elevated albumin would theoretically reduce this risk, but this is not typically the case in neonates.
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