« previous next »

Author Question: A patient with a normal PaO2 and cardiac output is exhibiting signs and symptoms of tissue hy-poxia. ... (Read 91 times)

captainjonesify

  • Hero Member
  • *****
  • Posts: 543
on: Jul 16, 2018
A patient with a normal PaO2 and cardiac output is exhibiting signs and symptoms of tissue hy-poxia. What is the most likely cause?
 
  a. Hemoglobin deficiency
  b. Low ambient PO2
  c. Right-to-left shunt
  d. Hypoventilation

Question 2

The expected PaO2 for an 80-year-old man who is otherwise in good health and breathing room air is approximately what level?
 
  a. 50 mm Hg
  b. 75 mm Hg
  c. 80 mm Hg
  d. 90 mm Hg


kxciann

  • Sr. Member
  • ****
  • Posts: 356
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
If the blood hemoglobin is loweven when the PaO2 is normalhypoxia can occur because of low O2 content in the arterial blood.

Answer to Question 2

ANS: B
One may estimate the expected PaO2 in older adults by using the following formula:
Expected PaO2 = 100.1  (0.323  age in years)


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Fungal nail infections account for up to 30% of all skin infections. They affect 5% of the general population—mostly people over the age of 70.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

The people with the highest levels of LDL are Mexican American males and non-Hispanic black females.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

A female gorilla exhibiting tool use by using a tree trunk as a support whilst fishing herbs. A female gorilla exhibiting tool use by using a tree trunk as a support whilst fishing herbs.
Abdominal thrusts are delivered with a firm thrust into the patient’s abdomen with an upward ... Abdominal thrusts are delivered with a firm thrust into the patient’s abdomen with an upward ...
Abnormalities Caused by Cardiac Pathology Abnormalities Caused by Cardiac Pathology
Selected Topical Corticosteroids for Dermatitis and Related Symptoms Selected Topical Corticosteroids for Dermatitis and Related Symptoms
Edema is one of the symptoms of beriberi Edema is one of the symptoms of beriberi
Cardiac conduction system Cardiac conduction system
Video: Phases of mitosis

For a complete list of videos, visit our video library