Homework Help is Here – Start Your Trial Now!
Science
Anatomy and Physiology
The partial pressure and solubility of a substance plays a very important role in human physiology, especially for oxygen. This becomes especially important when an individual has an illness or condition that affects the amount of oxygen available for circulating to the human body. Recall that the solubility of oxygen in blood (a) for healthy individuals is ~ 2e-3 cm³ O2/cm³ / mmHg, and that the typical partial pressure of oxygen (P) in blood is 100 mmHg. This is for a patient with a blood hematocrit of 42%, i.e., hemoglobin of 140 g/L 1. Case 1: A patient has low blood cell count (hence low hematocrit), and his hematocrit has reduced by 25%. Estimate how much oxygen is available in his blood? Assume a linear relationship between hematocrit and solubility. 2. Case 2: A patient has normal blood hematocrit, but a lung disease that reduces her partial pressure of oxygen to 60 mmHg. What happens to the oxygen in her blood? 3. Case 3: A patient has normal blood oxygen partial pressure and normal hematocrit, but oxygen saturation is 20%. How does this affect the oxygen available to him?

The partial pressure and solubility of a substance plays a very important role in human physiology, especially for oxygen. This becomes especially important when an individual has an illness or condition that affects the amount of oxygen available for circulating to the human body. Recall that the solubility of oxygen in blood (a) for healthy individuals is ~ 2e-3 cm³ O2/cm³ / mmHg, and that the typical partial pressure of oxygen (P) in blood is 100 mmHg. This is for a patient with a blood hematocrit of 42%, i.e., hemoglobin of 140 g/L 1. Case 1: A patient has low blood cell count (hence low hematocrit), and his hematocrit has reduced by 25%. Estimate how much oxygen is available in his blood? Assume a linear relationship between hematocrit and solubility. 2. Case 2: A patient has normal blood hematocrit, but a lung disease that reduces her partial pressure of oxygen to 60 mmHg. What happens to the oxygen in her blood? 3. Case 3: A patient has normal blood oxygen partial pressure and normal hematocrit, but oxygen saturation is 20%. How does this affect the oxygen available to him?

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
See similar textbooks
icon
Related questions
Question

Do answer all 3 cases... Thanks

The partial pressure and solubility of a substance plays a very important role in human physiology, especially for oxygen. This becomes especially important when an individual has an illness or condition that affects the amount of oxygen available for circulating to the human body. Recall that the solubility of oxygen in blood (a) for healthy individuals is ~ 2e-3 cm³ O2/cm³ / mmHg, and that the typical partial pressure of oxygen (P) in blood is 100 mmHg. This is for a patient with a blood hematocrit of 42%, i.e., hemoglobin of 140 g/L 1. Case 1: A patient has low blood cell count (hence low hematocrit), and his hematocrit has reduced by 25%. Estimate how much oxygen is available in his blood? Assume a linear relationship between hematocrit and solubility. 2. Case 2: A patient has normal blood hematocrit, but a lung disease that reduces her partial pressure of oxygen to 60 mmHg. What happens to the oxygen in her blood? 3. Case 3: A patient has normal blood oxygen partial pressure and normal hematocrit, but oxygen saturation is 20%. How does this affect the oxygen available to him?
Transcribed Image Text:The partial pressure and solubility of a substance plays a very important role in human physiology, especially for oxygen. This becomes especially important when an individual has an illness or condition that affects the amount of oxygen available for circulating to the human body. Recall that the solubility of oxygen in blood (a) for healthy individuals is ~ 2e-3 cm³ O2/cm³ / mmHg, and that the typical partial pressure of oxygen (P) in blood is 100 mmHg. This is for a patient with a blood hematocrit of 42%, i.e., hemoglobin of 140 g/L 1. Case 1: A patient has low blood cell count (hence low hematocrit), and his hematocrit has reduced by 25%. Estimate how much oxygen is available in his blood? Assume a linear relationship between hematocrit and solubility. 2. Case 2: A patient has normal blood hematocrit, but a lung disease that reduces her partial pressure of oxygen to 60 mmHg. What happens to the oxygen in her blood? 3. Case 3: A patient has normal blood oxygen partial pressure and normal hematocrit, but oxygen saturation is 20%. How does this affect the oxygen available to him?
Expert Solution
steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
Anatomy and Physiology
ISBN:
9780134580999
Author:
Elaine N. Marieb, Katja N. Hoehn
Publisher:
PEARSON
Anatomy & Physiology
Anatomy & Physiology
Anatomy and Physiology
ISBN:
9781259398629
Author:
McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:
Mcgraw Hill Education,
Human Anatomy
Human Anatomy
Anatomy and Physiology
ISBN:
9780135168059
Author:
Marieb, Elaine Nicpon, Brady, Patricia, Mallatt, Jon
Publisher:
Pearson Education, Inc.,
Anatomy & Physiology: An Integrative Approach
Anatomy & Physiology: An Integrative Approach
Anatomy and Physiology
ISBN:
9780078024283
Author:
Michael McKinley Dr., Valerie O'Loughlin, Theresa Bidle
Publisher:
McGraw-Hill Education
Human Anatomy & Physiology (Marieb, Human Anatomy…
Human Anatomy & Physiology (Marieb, Human Anatomy…
Anatomy and Physiology
ISBN:
9780321927040
Author:
Elaine N. Marieb, Katja Hoehn
Publisher:
PEARSON
SEE MORE TEXTBOOKS