How is flow cytometry used to determine if a donor bone marrow aspirate or stem cell
harvest is adequate to repopulate a bone marrow?
What will be an ideal response
An adequate number of pluripotent stem cells must be infused into a recipient to restore normal hematopoietic
capacity. Older techniques measured mononuclear cells in the expectation that a small percentage of mononuclear
cells would be pluripotent stem cells, although there was no guarantee that this was so. CD34 is one of the earliest
markers expressed in hematopoietic progenitors, and since it is lost at later stages of maturity, it is currently
considered the best marker for the ability of a harvested cell population to repopulate a bone marrow. All human
white blood cells express the CD45 marker, so a count is done of cells bearing both the CD45 and CD34 markers.
This count can then be used to estimate how much must be infused to transfer an adequate number of progenitor
cells.
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The LPN is instructing a client how to take the prescribed theophylline (TheoCap). Which of the following actions by the client ensures the client understood the instructions?
A. The client takes the medication every night at bedtime. B. The client takes the medication daily on an empty stomach with a full glass of water. C. The client takes the medication during an acute asthma attack. D. The client takes the medication up to four times each day as needed.
Which directional term is interchangeable with inferior?
A) cephalic B) caudal C) posterior D) dorsal
Identify two protective factors for tobacco use prevention. Explain their significance in preventing tobacco use.
What will be an ideal response?
The handholds for a traverse climbing wall are often _____ for level of difficulty
a. numbered b. color-coded c. alphabetized d. organized by height