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 13 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
Excellent

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Great answer, keep it coming :)

« previous next »
 

Did you know?

Signs and symptoms that may signify an eye tumor include general blurred vision, bulging eye(s), double vision, a sensation of a foreign body in the eye(s), iris defects, limited ability to move the eyelid(s), limited ability to move the eye(s), pain or discomfort in or around the eyes or eyelids, red or pink eyes, white or cloud spots on the eye(s), colored spots on the eyelid(s), swelling around the eyes, swollen eyelid(s), and general vision loss.

Did you know?

Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.

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?

Asthma is the most common chronic childhood disease in the world. Most children who develop asthma have symptoms before they are 5 years old.

Did you know?

During pregnancy, a woman is more likely to experience bleeding gums and nosebleeds caused by hormonal changes that increase blood flow to the mouth and nose.

Palade's use of the pulse-chase method to study protein secretion Palade's use of the pulse-chase method to study protein secretion
Palade's use of the pulse-chase method to study protein secretion Palade's use of the pulse-chase method to study protein secretion
A permanent epicardial pacemaker. The pulse generator can be placed in subcutaneous pockets in the s A permanent epicardial pacemaker. The pulse generator can be placed in subcutaneous pockets in the s
Hand placement for pulse checks Hand placement for pulse checks
Performing a Spirometry Test to Measure Forced Vital Capacity Performing a Spirometry Test to Measure Forced Vital Capacity
This mini clamp-on DMM is being used to measure the amount of battery electrical drain that is ... This mini clamp-on DMM is being used to measure the amount of battery electrical drain that is ...
Video: Hormonal regulation of pregnancy - weeks 2 through 38

For a complete list of videos, visit our video library