A nurse is preparing to administer 12 L lactated Ringers IV to infuse over 24 hr. Half of the fluid is to be administered in the first 8 hr. The nurse should set the IV pump to deliver how many mL/hr during the first 8 hr? (Round the answer to the nearest whole number.
Use a leading zero if it applies. Do not use a trailing zero.)
The Correct Answer is ["750"]
Step 1: Convert 12L of lactated Ringers to mL. We know that 1L = 1000mL. So, 12L of lactated Ringers is 12000mL.
Step 2: Calculate the volume of fluid to be administered in the first 8 hours. We are told that half of the fluid is to be administered in the first 8 hours. So, the volume to be administered in the first 8 hours is 12000mL ÷ 2 = 6000mL.
Step 3: Calculate the flow rate for the first 8 hours. The flow rate is calculated by dividing the volume to be administered by the time for the infusion. So, the flow rate is 6000mL ÷ 8hr.
Step 4: Round the answer to the nearest whole number. The calculated flow rate is 750 mL/hr. When rounded to the nearest whole number, the flow rate is 750 mL/hr.
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Related Questions
Correct Answer is ["2.8"]
Explanation
Step 1: The client weighs 154 lb. We need to convert this weight into kg because the dose is prescribed in mg/kg. We know that 1 kg = 2.20462 lb.
Step 2: So, 154 lb ÷ 2.20462 = 69.8532 kg (rounded to the nearest hundredth). Step 3: The prescribed dose is 4 mg/kg.
Step 4: So, 4 mg/kg × 69.8532 kg = 279.4128 mg (rounded to the nearest thousandth). Step 5: The available pentamidine is 100 mg/mL for injection.
Step 6: To find out how many mL should the nurse administer, we divide the required dose by the concentration.
Step 7: So, 279.4128 mg ÷ 100 mg/mL = 2.7941 mL (rounded to the nearest thousandth). The nurse should administer 2.8 mL (rounded to the nearest tenth).
Correct Answer is ["8"]
Explanation
Step 1: Calculate the volume of phenytoin to administer. We are told to administer 200 mg of phenytoin and that the available phenytoin is 125 mg/5 mL. So, the volume to administer is 200 mg ÷ (125 mg/5 mL).
Step 2: The calculated volume to administer is 8 mL.
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