What is the principle of impedance? Name at least two instruments that employ this method for blood cell counting
What will be an ideal response?
Answer: Impedance relies on the principle of increased resistance that occurs when a blood cell with poor conductivity passes through an electrical field. The number of pulses indicates the
count, and the height of the pulses indicates the relative volume of each cell passing through the photodetector. Instruments that use this method are Coulter ® Gen-S, Coulter ® LH series, Sysmex XE-2100TM, and Abbott CELL-DYN Sapphire ®.
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Which of the following could prove harmful to the provider if a medical record was used in a professional liability case?
A) Illegible documentation B) Use of incorrect abbreviations C) Incorrectly altered documentation D) All of the above
________ Fe is the chemical symbol for iron
Indicate whether the statement is true or false
The ________ is the network of blood vessels that carries blood to and from the rest of the body
A) systemic circuit B) peripheral circuit C) pulmonary circuit D) vascular circuit
Which of the following conditions may be caused by lifting or moving packages that are very heavy?
a. Strains b. Osteoarthritis c. Muscular dystrophy d. Carpal tunnel syndrome