Which of the following factors will cause analysis of blood gas samples to be erroneous?
1. Warming the sample
2. Low leukocyte counts
3. The presence of air bubbles in the sample
4. Icing the sample between obtaining and analyzing
5. Prolonged time delay between obtaining and analyzing a sample
a. 2 and 3 c. 1, 3, and 5
b. 2 and 4 d. 1, 2, 4, and 5
ANS: C
A prolonged delay between obtaining and analyzing a specimen (i.e., longer than 5 minutes) can lead to erroneous results. This problem is particularly evident in patients with high leukocyte counts. Chilling the specimen to below 5° C by placing the syringe in ice water can reduce the metabolic rate of the white blood cells, minimizing this problematic effect.
You might also like to view...
Pastes usually contain at least __________ percent solids
Fill in the blank(s) with correct word
What is the grading system used during the functional stop test for bladder control?
What will be an ideal response?
Hip fractures can occur in elderly patients without significant mechanism of injury due to decreased bone density.
Answer the following statement true (T) or false (F)
Which of the following is an intraocular procedure?
a. chalazion repair b. entropian repair c. strabismus correction d. vitrectomy