A client is receiving one liter of D5W 0.45% normal saline IV every 8 hours by gravity infusion. The IV tubing has a drip factor of 12 gtt/ml. The nurse should regulate the IV to deliver how many drops per minute? (Enter numeric value only. If rounding is required, round to the nearest whole number.)
The Correct Answer is ["25"]
Calculation:
- Identify the total volume to infuse and convert to milliliters (mL).
Total volume = 1 liter
1L = 1000 mL
Total volume (mL) = 1000 mL.
- Total infusion time and convert to minutes.
Infusion time = 8 hours
= 8 hours x 60 minutes/hour
= 480 minutes.
Drip factor of the IV tubing = 12 gtt/mL.
- Calculate the infusion rate in drops per minute (gtt/min).
Infusion rate (gtt/min) = (Total volume (mL) x Drip factor (gtt/mL)) / Total time (min)
= (1000 mL x 12 gtt/mL) / 480 min
= 12000 gtt / 480 min
= 25 gtt/min..
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Serum potassium level of 3.8 mEq/L (3.8 mmol/L): Sodium polystyrene sulfonate is used to treat hyperkalemia by exchanging sodium for potassium in the intestines, leading to potassium excretion. A potassium value within the normal range indicates that the medication has effectively lowered elevated potassium levels.
B. Hemoglobin level of 13.5 g/dL (135 g/L): While hemoglobin is important for assessing oxygen-carrying capacity, it is not directly affected by sodium polystyrene sulfonate therapy. This value does not measure the drug’s effectiveness.
C. Serum ammonia level of 30 μg/dL (17.62 μmol/dL): Ammonia levels are related to liver function and certain metabolic conditions. Sodium polystyrene sulfonate does not act on ammonia levels, so this finding is unrelated to evaluating its therapeutic effect.
D. Serum glucose level of 120 mg/dL (6.7 mmol/L): Blood glucose changes are not a direct effect of sodium polystyrene sulfonate. This value may reflect diet, diabetes control, or other factors, but it does not assess the drug’s intended outcome.
Correct Answer is A
Explanation
A. Use an additional form of contraception: Erythromycin can reduce the effectiveness of oral contraceptives by altering gut flora and affecting hormone metabolism. Using a backup contraceptive method during antibiotic therapy and for a short period afterward helps prevent unintended pregnancy.
B. Avoid prolonged exposure to direct sunlight: Photosensitivity is not a common adverse effect of erythromycin, so limiting sun exposure is not a primary precaution for this medication. This advice applies more to drugs such as tetracyclines or sulfonamides.
C. Stop the oral contraceptive immediately: Discontinuing oral contraceptives is not necessary; instead, a secondary method of contraception should be used to maintain pregnancy prevention while on erythromycin.
D. Take the medications at least 12 hours apart: Spacing doses does not prevent the interaction between erythromycin and oral contraceptives, as the interaction is metabolic and not based on direct drug-to-drug binding in the stomach.
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