haematocrit

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Related to hematocrits: Hematocrit level

haematocrit

he·mat·o·crit

(Hct) (hē-mat'ō-krit)
Percentage of the volume of a blood sample occupied by cells.
Compare: plasmacrit
Synonym(s): haematocrit.
[hemato- + G. krinō, to separate]

haematocrit

1. A CENTRIFUGE used to separate the cells from the fluid part of the blood.
2. The proportion of the volume of cells to the total volume after the blood has been centrifuged.

haematocrit

the percentage of the blood volume occupied by red blood cells. The percentage is 40.5% in man.

he·mat·o·crit

(Hct) (hē-mat'ō-krit)
Percentage of the volume of a blood sample occupied by cells.
Compare: plasmacrit
Synonym(s): haematocrit.
[hemato- + G. krinō, to separate]
References in periodicals archive ?
Intramuscular testosterone is the only form that significantly increases hematocrit above normal levels.
Along with the expanded bundled payment, the Medicare program initiated payment penalties that cut reimbursements by up to 2 percent for dialysis facilities that did not meet a prespecified standard on a composite of three performance indicators in 2012; one pertained to maintaining hematocrit levels above 30 percent, a second pertained to maintaining hematocrit below 36 percent, and a third measure pertained to the Urea Reduction Ratio, a measure of the adequacy of dialysis (Swaminathan et al.
For automated hematologic analyzers (LH 750), the RBC and MCV are directly measured by the instrument depending on the number of pulses for RBC and the amplitude of each pulse for MCV using electronic impedance; then the hematocrit is calculated by using following equation:
Target hematocrit, missing the mark--Failure to achieve optimal functioning, complications of coexisting health problems.
The cells are as mentioned mainly RBCs, the parameter used for modelling purposes is the hematocrit level, which is the volume fraction that RBCs occupy.
However, the important role of the kidney is demonstrated by the increased hematocrit of a renoprival patient following a successful transplant.
Some factors can affect spun microhematocrit readings, including improper sealing of the capillary tube resulting in blood loss from the tube, not mixing the specimen, the time and speed of centrifugation outside the standard five minutes at 10,000 to 15,000 RPM, incorrect reading with the hematocrit reader, excessive trapped plasma in the packed red cells such as from neonate hyperviscosity syndrome, dehydration of the patient, capillary tube size outside the usual 75mm with 1.
This is due in large part to an increased risk of thromboses with high hematocrits (Solberg et al.
Table 1 presents data on EPO use, patient outcomes (as measured by hematocrit level), and costs as reflected in Medicare billing data.
People with lower hematocrits tended to be older and have higher APACHE scores, a higher Charlson index, a history of heart disease, and were more likely to have diabetes.
Red blood cells were added back to the supplemented plasma to obtain hematocrit values approximating 20%, 40%, and 60%.