This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Which of these two parameters does a pulse oximeter measure? 1. O2Hb 2. Hb 3. COHb 4. MetHb a. 1 ... (Read 8 times)

APUS57

  • Hero Member
  • *****
  • Posts: 571
on: Jul 16, 2018
Which of these two parameters does a pulse oximeter measure? 1. O2Hb 2. Hb 3. COHb 4. MetHb
 
  a. 1 and 2
  b. 1 and 3
  c. 2 and 3
  d. 3 and 4

Question 2

Which of the following describes the filling pressure of the ventricle at the end of ventricular di-astole?
 
  a. Preload
  b. Afterload
  c. Dicrotic notch
  d. Ejection fraction


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

vseab

  • Sr. Member
  • ****
  • Posts: 323
Reply #1 on: Jul 16, 2018
Answer to Question 1

ANS: A
Pulse oximetry provides continuous, noninvasive measurements of arterial oxygen saturation. A sensor is placed over a digit, an earlobe, the forehead or the bridge of the nose; this sensor measures the absorption of selected wavelengths of light beamed through the tissue (Fig. 10-1). For example, oxyhemoglobin can be differentiated from deoxygenated hemoglobin by shining two wavelengths of light (660 and 940 nm) through the sampling site. As Figure 10-2 illustrates, at a wavelength of 660 nm (red light), deoxygenated hemoglobin absorbs more light than oxy-hemoglobin. Conversely, oxyhemoglobin absorbs more light at 940 nm (infrared light IR) than does deoxygenated hemoglobin.

Answer to Question 2

ANS: A
The definition of preload is the filling pressure of the ventricle at the end of ventricular diastole.


APUS57

  • Member
  • Posts: 571
Reply 2 on: Jul 16, 2018
Gracias!

ghepp

  • Member
  • Posts: 361
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

Did you know?

In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

Palade's use of the pulse-chase method to study protein secretion Palade's use of the pulse-chase method to study protein secretion
Palpation of brachial pulse Palpation of brachial pulse
Connections and settings necessary to measure fuel-injector resistance. Connections and settings necessary to measure fuel-injector resistance.
Parameters of Polynucleotide Helices Parameters of Polynucleotide Helices
Body sites where the peripheral pulse is most easily palpated Body sites where the peripheral pulse is most easily palpated
Palpating the posterior tibial pulse Palpating the posterior tibial pulse
Video: Blood Flow Through the Kidneys

For a complete list of videos, visit our video library