Chapter 17 Calculating IV Infusion and Completion Times

Definitions • Infusion time – Time required for IV solution to infuse completely •

Purposes of Calculating IV Times • To have additional solutions prescribed, prepared in advance,

Purposes of Calculating IV Times • Laboratory values sometimes made before, during, or after

Calculating Infusion Time • Divide volume to be infused by m. L/hr flow rate

Calculating Infusion Time: Example • Calculate infusion time for IV of 1000 m. L

$Fractional Hours • Converted to min by multiplying 60 min by fractional hour obtained$

Fractional Hours: Example • Calculate infusion time for 500 m. L at 75 m.

Calculating Completion Time • Add infusion time to time IV was started – Military

Military Time • Used by most acute care facilities for uniformity • Avoids confusion

Military Time • Based on 24 hours on day clock with no repetition of

Military Time • • 2400 = midnight 0100 = 1: 00 a. m. 0200

Military Time • • 0700 = 7: 00 a. m. 0800 = 8: 00

Military Time • • 1400 = 2: 00 p. m. 1500 = 3: 00

Military Time • 2100 = 9: 00 p. m. • 2200 = 10: 00

Military Time: Example • Calculate completion time for 500 m. L at 75 m.

Military Time: Example • Infusion time = 6 hours and 40 min • Add

Labeling IV Solution Bags • Allows for monitoring of amount of remaining fluid •

Labeling IV Solution Bags • Commercially prepared labels available – Though can be prepared

Labeling IV Solution Bags: Example • IV of 1000 m. L prescribed at rate

Labeling IV Solution Bags: Example • 0100 label – 1000 m. L – 150

Labeling IV Solution Bags: Example • 0400 label – 550 m. L – 150

Labeling IV Solution Bags: Example • Calculate infusion time for remaining 100 m. L

Labeling IV Solution Bags: Example • of 0640 (6: 40 a. m. ) Copyright

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Definitions • Infusion time – Time required for IV solution to infuse completely • Completion time – Actual hour and/or minute infusion bag, bottle, or syringe finishes or empties Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Purposes of Calculating IV Times • To have additional solutions prescribed, prepared in advance, and ready at-hand • To discontinue IV when infusion complete • To label IV bag with start, progress, and completion time • To monitor and adjust infusion to keep it on schedule Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Purposes of Calculating IV Times • Laboratory values sometimes made before, during, or after specified amounts of IV solutions have infused Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

$Fractional Hours • Converted to min by multiplying 60 min by fractional hour obtained$

Military Time • Based on 24 hours on day clock with no repetition of hour numbers • Written in four-digit numbers • After noon, each hour added to 12 Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Military Time • • 2400 = midnight 0100 = 1: 00 a. m. 0200 = 2: 00 a. m. 0300 = 3: 00 a. m. 0400 = 4: 00 a. m. 0500 = 5: 00 a. m. 0600 = 6: 00 a. m. Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Military Time • • 0700 = 7: 00 a. m. 0800 = 8: 00 a. m. 0900 = 9: 00 a. m. 1000 = 10: 00 a. m. 1100 = 11: 00 a. m. 1200 = 12: 00 p. m. 1300 = 1: 00 p. m. Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Military Time • • 1400 = 2: 00 p. m. 1500 = 3: 00 p. m. 1600 = 4: 00 p. m. 1700 = 5: 00 p. m. 1800 = 6: 00 p. m. 1900 = 7: 00 p. m. 2000 = 8: 00 p. m. Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Military Time: Example • Infusion time = 6 hours and 40 min • Add infusion time to IV start time • 0800 + 6 hr and 40 min = 1440 (2: 40 p. m. ) Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Labeling IV Solution Bags • Commercially prepared labels available – Though can be prepared locally by using tape that is: • Easy to write on • Easy to read • Wide enough to contain written times Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Labeling IV Solution Bags: Example • IV of 1000 m. L prescribed at rate of 150 m. L/hr • Started at 2400 (midnight) • Tape bag with start, progress, and completion times Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Labeling IV Solution Bags: Example • 0100 label – 1000 m. L – 150 m. L = 850 m. L • 0200 label – 850 m. L – 150 m. L = 700 m. L • 0300 label – 700 m. L – 150 m. L = 550 m. L Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.

Labeling IV Solution Bags: Example • 0400 label – 550 m. L – 150 m. L = 400 m. L • 0500 label – 400 m. L – 150 m. L = 250 m. L • 0600 label – 250 m. L – 150 m. L = 100 m. L Copyright © 2010 Delmar, Cengage Learning. ALL RIGHTS RESERVED.