Question | Answer |
Manual white blood cell counts are done with a hemacytometer called a __ __. | Levy chamber |
The Levy chamber with Neubauer ruling is used for __ __. | body fluids |
How much ammonium oxalate is used to do a platelet count in Levy chamber? | one percent |
Hemoglobin determination is done with the __ method. | cyanmethemoglobin |
Hemoglobin is oxidized to __ by the potassium ferrycyanide. | methemoglobin |
__ cyanide then converts the methemoglobin to cyanmethemoglobin. | Potassium |
The rule of three says that hematocrit should be three times the hemoglobin plus or minus __. | three |
The rule of three only works when cells are of __ size and color. | normal |
Two reasons the rule of three might not work correctly are __ and cold __. | lipemia, agglutination |
In the rule of three, red blood cells times _ should equal hemoglobin. | three |
In the rule of three, hemoglobin times __ should equal hematocrit. | three |
Mean cell volume is the __ volume of an erythrocyte. | average |
Mean cell volume is determined by multiplying __ by ten, and dividing the result by the number of RBCs. | HCT |
The normal range for mean cell volume is __ to __ fl. | eighty, ninety-six |
Mean cell hemoglobin expresses that average __ of hemoglobin in an average erythrocyte. | weight |
Mean cell hemoglobin is found by multiplying __ by ten and dividing the result by the number of erythrocytes. | HGB |
The normal range for mean cell hemoglobin is __ to __ pg. | twenty-seven, thirty-two |
Mean cell hemoglobin concentration is the average concentration of _ per unit volume of erythrocytes. | hemoglobin |
Mean cell hemoglobin concentration is found by multiplying __ by 100 and dividing the result by the HCT. | HGB |
The normal range for mean cell hemoglobin concentration (MCHC) is __ to __ g/dl. | thirty-two, thirty-six |
A reticulocyte count is used to assess erythropoietic activity of the __ __. | bone marrow |
What kind of stain is used to do a reticulocyte count? | new methylene blue |
New methylene blue is a __ stain. | supravital |
What type of ocular disc is used to do a retic count? | Miller disc |
The normal percentage range of reticulocytes for a newborn is __ to __. | two percent, six percent |
The normal percentage range of retics for an adult is __ to __. | 0.5 to 2.2 percent |
The normal absolute count of retics for an adult ranges from __ to __. | twenty, one-hundred-twenty |
During the retic counting procedure, a technician must first mix __ amounts of blood and new methylene blue. | equal |
During the retic counting procedure, a lab technician must incubate the mixture of blood and new methylene blue for __ minutes at room temperature. | ten |
Most labs use __ methods to reduce manual errors. | automated |