« previous next »

Author Question: All of the following will be invalid when lipemia is present in a blood sample except: a. MCHC ... (Read 47 times)

haleyc112

  • Hero Member
  • *****
  • Posts: 600
on: Jun 25, 2018
All of the following will be invalid when lipemia is present in a blood sample except:
 
  a. MCHC
  b. MCV
  c. MCH
  d. Hemoglobin

Question 2

Select the most appropriate action for the results in Question 18:
 
  a. Report the results.
  b. Lyse the red cells manually and rerun.
  c. Warm sample to 37 C and rerun.
  d. Replace plasma with saline and rerun.


tuwy

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: B
When a blood sample is lipemic, the hemoglobin is falsely elevated. The MCH and MCHC are also falsely elevated because they use the hemoglobin measurement for their calculation. The MCV is valid because it does not depend on the hemoglobin measurement.

Answer to Question 2

ANS: C
The blood sample should be warmed to 37 C and rerun when a cold agglutinin is present or suspected of being present. The antibody will disassociate from the red cell membrane at this temperature, and the red cells will unclump. This raises the red count and lowers the MCV, MCH, and MCHC.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

The Food and Drug Administration has approved Risperdal, an adult antipsychotic drug, for the symptomatic treatment of irritability in children and adolescents with autism. The approval is the first for the use of a drug to treat behaviors associated with autism in children. These behaviors are included under the general heading of irritability and include aggression, deliberate self-injury, and temper tantrums.

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?

All adults should have their cholesterol levels checked once every 5 years. During 2009–2010, 69.4% of Americans age 20 and older reported having their cholesterol checked within the last five years.

Did you know?

Patients who have been on total parenteral nutrition for more than a few days may need to have foods gradually reintroduced to give the digestive tract time to start working again.

Did you know?

The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

Blood transfusion. Blood transfusion.
Blood Vessels Blood Vessels
Cardiac Blood Flow Cardiac Blood Flow
Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of Bell Curve for Intelligence IQ scores for a population-based sample usually fall into this kind of
Formation of blood cells Formation of blood cells
How body makes blood flow more into brain instead of foot? How body makes blood flow more into brain instead of foot?
Video: The Vestibular System

For a complete list of videos, visit our video library