Calculate the gravity rate for gentamycin 100 mg/100ml with secondary tubing (20gtts/mL) over 60 minutes.
The Correct Answer is ["33"]
Given:
Total volume to infuse: 100 mL
Infusion time: 60 minutes
Drop factor of tubing: 20 gtt/mL
To find:
Drip rate (gtt/min)
Step 1: Calculate the total number of drops
Total drops = Total volume x Drop factor
Total drops = 100 mL x 20 gtt/mL = 2000 gtt
Step 2: Calculate the drip rate
Drip rate = Total drops / Infusion time in minutes
Drip rate = 2000 gtt / 60 minutes = 33.33 gtt/min
Step 3: Round to the nearest whole number
33 gtt/min.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["2"]
Explanation
Given:
Desired dose: Ampicillin 0.5 g PO
Available concentration: Ampicillin capsules 250 mg each
To find:
Number of capsules to administer for a single dose
Step 1: Convert desired dose to milligrams
We know that 1 gram (g) is equal to 1000 milligrams (mg). Therefore, to convert the desired dose from grams to milligrams, we multiply by 1000:
Desired dose (mg) = Desired dose (g) x 1000
Desired dose (mg) = 0.5 g x 1000 = 500 mg
Step 2: Calculate the number of capsules
To find the number of capsules, we divide the desired dose by the strength of each capsule:
Number of capsules = Desired dose / Capsule strength
Number of capsules = 500 mg / 250 mg/capsule = 2 capsules
Correct Answer is ["3.6"]
Explanation
Given:
Desired dose: Ceftazidime 1 g IM every 6 hours
Available concentration: Ceftazidime 280 mg/mL
To find:
Volume to administer (in mL)
Step 1: Convert desired dose to milligrams
1 gram (g) is equal to 1000 milligrams (mg).
Multiply by 1000:
Desired dose (mg) = Desired dose (g) x 1000
Desired dose (mg) = 1 g x 1000 = 1000 mg
Step 2: Set up the proportion
We can use the following proportion to solve the problem:
(Desired dose) / (Available concentration) = Volume to administer
Step 3: Substitute the values
Plugging in the given values, we get:
(1000 mg) / (280 mg/mL) = Volume to administer
Step 4: Simplify
To simplify, we can invert the denominator and multiply:
(1000 mg) x (1 mL / 280 mg) = Volume to administer
The "mg" units cancel out, leaving us with:
(1000 x 1 mL) / 280 = Volume to administer
Step 5: Calculate
Performing the multiplication and division, we get:
1000 mL / 280 = Volume to administer
3.57 mL ≈ Volume to administer
Step 6: Round to the nearest tenth
3.6mL
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