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Published byMorris Rice Modified over 2 years ago

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ProCalc Nsg 132

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Calculating gtts per minute Example 1 We have an available IV administration set that delivers 10 gtts/ml. 0.9% NaCl (0.9% Sodium Chloride) has been prescribed to run IV at a rate of 150 ml/1 hr. The IV should infuse at how many gtts/min? We will find the answer in 5 steps: Step 1 – Write down the prescribed rate Step 2 – Write down the IV set rate Step 3 – Write down the conversion factor Step 4 – Reduce the units Step 5 – Perform the math When calculating drops round your answer to the nearest whole number.

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150 ml 1 hour Step 1 10 gtts 1 ml Step 2 1500 gtts Step 5 =x Step 3 25 gtts 1 min = Reduce the answer & include the units. = 150 x 10 x 1 gtts 1 x 1 x 60 min60 min 1 hour 60 min Calculating gtts per minute Example 1 You have an available IV administration set that delivers 10 gtts/ml. 0.9% NaCl (0.9% Sodium Chloride) has been prescribed to run IV at a rate of 150 ml/1 hr. The IV should infuse at how many gtts/min? We will find the answer in 5 steps: Step 1 – Write down the prescribed rate Step 2 – Write down the IV set rate Step 3 – Write down the conversion factor Step 4 – Reduce the units Step 5 – Perform the math Step 4 x

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350 ml 1 hour Step 1 15 gtts 1 ml Step 2 5250 gtts Step 5 =x Step 3 87.5 gtts 1 min = Reduce the answer & include the units. = 350 x 15 x 1 gtts 1 x 1 x 60 min60 min 1 hour 60 min Calculating gtts per minute Example 2 350 ml of D5 in Lactated Ringer’s (5% Dextrose in Lactated Ringer’s Solution) has been prescribed for IV infusion over 1 hr. You are using an IV administration set that delivers 15 gtts/ml. The IV should infuse at how many gtts/min? We will find the answer in 5 steps: Step 1 – Write down the prescribed rate Step 2 – Write down the IV set rate Step 3 – Write down the conversion factor Step 4 – Reduce the units Step 5 – Perform the math Step 4 Round drops to the nearest whole number. 87.5 = 88 gtts/min x

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Thank you for viewing the Yavapai College Verde Learning Center Tutorial on Calculating Drops per Minute

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1 Dosage Calculation Review Review based on required readings selected from: Pickar, G. (2007). Dosage calculation: A ratio-proportion approach (2nd ed.).

1 Dosage Calculation Review Review based on required readings selected from: Pickar, G. (2007). Dosage calculation: A ratio-proportion approach (2nd ed.).

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