Why is G6PD important for normal red cell survival?
a. Hemoglobin oxygen affinity is increased in its absence.
b. It is required to regenerate reduced glutathione.
c. It is required for insertion of iron into the protoporphyrin ring to form heme.
d. a Chains are produced in excess in its absence.
ANS: B
G6PD is required to regenerate reduced glutathione in the red cell. Reduced glutathione is essential to generate nicotinamide adenine dinucleotide phosphate, which is necessary to prevent oxidative damage to the red cell.
You might also like to view...
Which of the following organs receive all the blood returning from the digestive tract via the hepatic circulation?
A) Spleen B) Kidneys C) Lungs D) Liver
Which of the following analyzers measures reticulocytes by sphering the blood cells prior to analysis?
a. Coulter LH series b. Coulter Gen-S c. Abbott Sapphire d. Sysmex XE-2100
Brain injury from continuous or repetitive seizures, a condition called ____, can occur within five minutes.
A. nuchal rigidity B. status epilepticus C. post-ictal period D. prolonged twilight
A healthy weight
A) Is the same for all people B) Can only be determined by expensive laboratory equipment C) Changes daily for each person D) Is a weight range associated with one's height, gender, and age