Fluid Intake and Output Calculations (Part 4: 10 Items)
1. 1. Question
Your patient has had the following intake: 2 ½ cups of coffee (240 mL/cup), 11.... [Show More] 5 oz of grape juice, ¾ qt of milk, 320 mL of diet coke, 1 ¼ L of D5W IV and 2 oz of grits. What will you record as the total intake in mL for this patient? Fill in the blank.
*Write numbers only on the answer box with no punctuation marks.
o Answer: (3265) mL.
Incorrect
Correct answer:
• 3265 mL.
Rationale:
• 1 qt = 1,000 ml
• 1 oz = 30 ml
• 2 ½ cups is equal to 600 ml.
• 11.5 oz is equal to 345 ml.
• ¾ qt is equal to 750 ml.
• Add 600 ml, 345 ml, 750 ml, 320 ml, and 1250 ml to get 3,265 ml.
600 ml + 345 ml + 750 ml + 320 ml + 1,250 ml = 3,265 ml (Grits is not liquid at room temperature, so it is not included when calculating intake.)
2. 2. Question
Your patient has had the following intake: 8 oz glasses of iced tea, 4 oz cartons of grape juice, ¾ pt of ice cream, 32 oz of juice, 1 ½ L of D5W IV and 6 oz of cottage cheese. What will you record as the total intake in mL for this patient? Fill in the blank.
*Write numbers only on the answer box with no punctuation marks.
• Answer: (3195) mL.
Incorrect
Correct answer: 3195 mL. Rationale:
• 1 pt = 500 ml
• 1 oz = 30 ml
• 8 oz is equal to 240 ml, 4 oz is equal to 120 ml, ¾ pt is equal to 375 ml, 32 oz is equal to 960 ml.
• Add 240 ml, 120 ml, 375 ml, 960 ml, and 1,500 ml to get 3,195 ml.
240 ml + 120 ml + 375 ml + 960 ml + 1,500 ml = 3,195 ml (Cottage cheese is not liquid at room temperature, so it is not included when calculating intake.)
3. 3. Question
Your patient had the following intake: 2 1/2 bowls of broth (180 mL/bowl), 1 can of tomato juice (4.5 oz/can ), 4 oz of cottage cheese, 1 ¾ L of NS IV and ½ pt of ice cream. What will you record as the total intake in mL for this patient? Fill in the blank.
*Write numbers only on the answer box with no punctuation marks.
• Answer: (2585) mL.
Incorrect
Correct answer:
• 2585 mL.
Rationale:
• 1 oz = 30 mL; 4.5 oz is equal to 135 mL.
• 1 pt = 500 mL; ½ pt is equal to 250 mL.
• Add 450 mL, 135 ml, 1,750 mL and 250 mL to get 2,585 ml.
450 ml + 135 ml + 1,750 ml + 250 ml = 2,585 ml (Cottage cheese is not liquid at room temperature, so it is not included when calculating intake.)
4. 4. Question
Your patient has had the following intake: ½ cup of hot tea (240 mL/cup), 3/4 container of grapefruit juice (4 oz/container), 3/4 qt of milk, 1 pt of water, 125 mL of D5W IV x 8 hr and 2 oz of fruit cocktail. What will you record as the total intake in mL for this patient? Fill in the blank.
• Answer: (2460) mL.
Incorrect
Correct answer:
• 2460 mL.
Rationale:
• 1 oz = 30 mL; ¾ of 4 oz is equal to 90 mL.
• 1 qt = 1000 mL; ¾ qt is equal to 750 mL.
• Add 120 mL, 90 mL, 750 mL, 500 mL, and 1,000 mL to get 2,460 mL.
120 mL + 90 mL + 750 mL + 500 mL + 1,000 mL = 2,460 mL (Fruit cocktail is not liquid at room temperature, so it is not included when calculating intake.)
5. 5. Question
You evaluate a patient’s intake and output for 8 hours. Intake for 8 hours:
• 3 8-oz cups of coffee
• 4 oz orange juice
• 3/4 cup of milk
• 8 oz tomato soup
• 1/2 cup Jello
• 2 cups of water
• 750 mL of 0.9% normal saline IV
How many milliliters should you record as intake? Fill in the blanks.
*Write numbers only on the answer box with no punctuation marks.
• Answer: (2610) mL intake
Incorrect
Correct answer:
• 2610 mL intake
Rationale:
• First, you must convert all amounts to the same units, usually milliliters.
• Add 720 + 120 + 180 + 240 + 120 + 480 + 750 to get 2,610 mL intake.
6. 6. Question
You are providing home care for a patient who needs to mix her oral psyllium hydrophilic mucilloid (Metamucil) in 180 mL of water or juice. She has only standard measuring cups in the house. How many cup(s) do you instruct her to take her dose?
• A. 1 cup
• B. 3/4 cup
• C. 1/2 cup
• D. 1/4 cup
Incorrect
Correct answer:
• B. 3/4 cup
Rationale:
• Convert 180 mL to cups by multiplying 180 mL by 1 cup then divide it by 240 mL to get 0.75 or ¾ cup.
Computation:
7. 7. Question
A patient with HIV infection is receiving 200 mg of didanosine (Videx) PO bid. The pharmacy only has powder packets with 167 mg each, to be mixed with 4 oz of water. How many packets should the patient mix? How much should the patient take? How can it be measured? Fill in the blanks. Record your answer using one decimal place.
• Answer: (4.8) oz
Incorrect
Correct answer:
• 4.8 oz
Rationale
• Multiply 200 mg with 4 oz to get 800.
• Divide 800 by 167 mg to get 4.8 oz.
Computation: *The patient will have to mix two packets, each in 4 oz of water, and drink 4.8 oz measured in a calibrated measuring cup. If a cup that measures milliliters is available, then: or
8. 8. Question
A hospitalized patient with heart failure is on a 1000 mL fluid restriction each 24 hours. During the 7 a.m. to 7 p.m. shift, he has three meals, consuming 1/2 cup of coffee with each. He also has 50 mL of water each time he takes his medications at 7 a.m., noon, and 5 p.m. Mid Afternoon, he drinks 240 mL of soda. How many milliliters may he consume during the 7 p.m. to 7 a.m. shift? Fill in the blanks. [Show Less]
