If the inspiratory capacity of a patient is measure in a spirometer as 3L ina room at 25°C with P= 770 mm Hg, what is the correct volume in thelungs at body temperature? The patient's temperature is 38°C.Vapor Pressure and Absolute Humidity for Air Saturated With Water VaporTemperature (°C) Vapor Pressure (mm Hg)Water Vapor Content (mg/L)17.5017.3020212223242526272829303132333435363718.6219.8021.1022.4023.8025.2026.7028.3030.0031.8033.7035.7037.7039.9042.2044.6047.0018.3519.4220.5821.7823.0424.3625.7527.2228.7530.3532.0133.7635.6137.5739.6041.7043.80ATPS to BTPS Correction Factor"1.1021.0961.0911.0851.0801.0751.0681.0631.0571.0511.0451.0391.0321.0261.0201.0141.0071.00025

Answered: If the inspiratory capacity of a…

Phlebotomy Essentials

6th Edition

ISBN:9781451194524

Author:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Publisher:Ruth McCall, Cathee M. Tankersley MT(ASCP)

Chapter1: Phlebotomy: Past And Present And The Healthcare Setting

Section: Chapter Questions

Problem 1SRQ

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Question

If the inspiratory capacity of a patient is measure in a spirometer as 3L in
a room at 25°C with P= 770 mm Hg, what is the correct volume in the
lungs at body temperature? The patient's temperature is 38°C.
Vapor Pressure and Absolute Humidity for Air Saturated With Water Vapor
Temperature (°C) Vapor Pressure (mm Hg)
Water Vapor Content (mg/L)
17.50
17.30
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
18.62
19.80
21.10
22.40
23.80
25.20
26.70
28.30
30.00
31.80
33.70
35.70
37.70
39.90
42.20
44.60
47.00
18.35
19.42
20.58
21.78
23.04
24.36
25.75
27.22
28.75
30.35
32.01
33.76
35.61
37.57
39.60
41.70
43.80
ATPS to BTPS Correction Factor"
1.102
1.096
1.091
1.085
1.080
1.075
1.068
1.063
1.057
1.051
1.045
1.039
1.032
1.026
1.020
1.014
1.007
1.000
25

Expert Solution

Step 1: Brief Introduction

In healthcare and pulmonary assessments, it's crucial to ensure that lung volume measurements are accurate and relevant to a patient's physiological condition. Spirometry, a common diagnostic tool, provides valuable data on lung function. However, temperature and atmospheric pressure variations can affect these measurements' accuracy. In this scenario, we will explore how to adjust a patient's measured inspiratory capacity (IC) obtained at room temperature to the correct body temperature volume, considering the provided data on temperature-specific correction factors. As healthcare professionals, understanding and applying these principles is essential for precise assessment and diagnosis in clinical practice.