Hydrodynamic focusing in flow cytometry is important because it:
a. Directs the laser light
b. Intensifies the laser light with mirrors
c. Collects the scattered light
d. Creates a core of individually aligned cells
ANS: D
Hydrodynamic focusing creates a central stream of individually aligned cells surrounded by sheath fluid. This is essential for consistent illumination of each cell as it passes in front of the gas laser light source.
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The development of toxic shock in a patient who had circulation to a part of the body cut off for a period of time is called:
a. anoxia syndrome. b. compartment syndrome. c. amputation syndrome. d. circulatory syndrome.
The first phase of mandibular depression occurs in the ____________________ joint and consists of anterior ____________________ of the condylar head
a. upper, rotation b. lower, rotation c. upper, translation d. lower, translation
Ichthyosis vulgaris is a:
a. Contagious skin condition caused by dermatophytes b. Group of disorders that cause disruption of skin cell generation and removal c. Condition that increases the production of sebum d. Condition that is common in warm, humid climates
All of the following are preventable medical errors except
A) needle infections. B) incorrect diagnosis. C) in-hospital cardiac arrest. D) wrong-site surgical procedures.