A+ 2025/2026 NEW!! WITH COMPLETE SOLUTION
Tolerance & Accuracy - Ans Refers to the limit of error or the nearness to true value
Precision & Reproducibility - Ans Refers to the ability to repeatedly produce the same value
plasmapheresis - Ans whole blood is removed from the donor; plasma is separated by
centrifuga on, and the remaining por on of blood (blood cells) is returned to the donor.
If decolourizer is applied too long - Ans Gram-posi ve cells may appear Gram-nega ve
pH meters electrodes - Ans Reference electrode & indicator electrode
Glutaradehyde - Ans Disinfected used for centrifuges
Romanowsky stain - Ans Ploychrome stain. Able to impart many colours. Type of Wright's stain
Eosins - Ans Acid dye component. Stains cells red
methylene blue - Ans Basic dye component. Stains cell blue
Parts of the cell that take up both acid and basic dyes - Ans Neutral and will stain purple
Temperature glassware is calibrated at - Ans 20' C
, Tests done on blood for transfusion - Ans ABO grouping. Rh typing. An body screening. Hep B.
An - HCV. An - HIV. An - HTLV. Syphilis and west nile virus.
TC means? - Ans To contain (ie volumetric flasks)
TD means? - Ans To deliver (ie pipe7es & some graduated cylinders)
pH meter is designed to measure - Ans Hydrogen ion ac vity of a solu on
Designed to produce a constant poten al - Ans Reference electrode, provides means of
electrode contact. Allows flow of KCl
Specialized glass membrane which a7racts & measures hydrogen ions - Ans Indicator electrode
Solu ons with a high number of hydrogen ion - Ans Will have a low pH number (1-6) - Acids
Solu ons with few hydrogen ions - Ans Will have a high pH number (8-14) - Bases
Neutral solu ons have a pH of - Ans pH of 7
Examples of an automa c stainers - Ans Aerospary (rota ng carousel) & HEMA-TEK (capillary
ac on)
Red cell concentrates are stored - Ans 42 days in a blood bank refrigerator
Plasma can be stored - Ans At less than -18'c for one year