# Basic Math Operations

### 20 terms by victorialatawiec Plus

#### Study  only

Flashcards Flashcards

Scatter Scatter

Scatter Scatter

## Create a new folder

### Precision

the degree to which a measurement can be reproduced

### Accuracy

the extent to which a measurement agrees with a standard

...

### Random

unavoidable error but can be minimized

### Systematic

due to a faulty measuring device or a procedural flaw

### Parallax

shift in position of an object due to the viewing angle

### I-Time

time spent inhaling

### E-Time

time spent exhaling

### I:E Ratio

inspiratory/expiratory ratio

### Total Cycle Time

sum of both the I-time and the E-time

### I-time/I-time: E-time/I-time

formula for I:E Ratio

1:2 or 1:3

1:4 or 1:5

1:1 or 1:1.5

12-20 b/m

8-12 b/m

### Inverse I:E Ratio

when E-time exceeds I-time
only used on patients who have ARDS and the patient must be very heavily sedated

### I-time/E-time: E-time/E-time

inverse I:E ratio formula

### E-time= 60/RR-I-time

calculating I:E ratio when the respiratory rate and either I-time or E-time is given

### 1) TCT= 60/RR; 2) I-time= TCT/sum of I:E ratio; 3) E-time= TCT- I-time

calculating the I-time and E-time when TCT and I:E ratio are given

Example: