Results of which are consistent with platelet dysfunction due to storage pool defect. Peripheral blood smear shows light staining gray appearance of platelets.
The precise factor depends on hematocrit as well as amount inside RBCs.
Exceptions are mainly those Hematology case studies platelets that denote total blood concentration, and in this article they are: All values in Hematology — red blood cells except hemoglobin in plasma All values in Hematology — white blood cells Platelet count Plt A few values are for inside red blood cells only: Is usually given with dL decilitres as the denominator in the United States, and usually with L litres in, for example, Sweden.
Arterial or venous[ edit ] If not otherwise specified, a reference range for a blood test is generally the venous range, as the standard process of obtaining a sample is by venipuncture.
An exception is for acid-base and blood gaseswhich are generally given for arterial blood. Still, the blood values are approximately equal between the arterial and venous sides for most substances, with the exception of acid-base, blood gases and drugs used in therapeutic drug monitoring TDM assays.
This may also be called standard range. In contrast, optimal health range or therapeutic target is a reference range or limit that is based on concentrations or levels that are associated with optimal health or minimal risk of related complications and diseases.
For most substances presented, the optimal levels are the ones normally found in the population as well.
More specifically, optimal levels are generally close to a central tendency of the values found in the population. However, usual and optimal levels may differ substantially, most notably among vitamins and blood lipids, so these tables give limits on both standard and optimal or target ranges.
In addition, some values, including troponin I and brain natriuretic peptideare given as the estimated appropriate cutoffs to distinguish healthy people from specific conditions, which here are myocardial infarction and congestive heart failurerespectively, for the aforementioned substances.
Reference range References range may vary with age, sex, race, pregnancy,  diet, use of prescribed or herbal drugs and stress. Reference ranges often depend on the analytical method used, for reasons such as inaccuracylack of standardisationlack of certified reference material and differing antibody reactivity.
Sorted by concentration[ edit ].PATHOPHYSIOLOGY CASES FOR HEMATOLOGY Dr.
David Diuguid Section Director. Pathophysiology - Hematology 2. The performance of a WBC "differential" 3. The identification of platelets on blood smears. Pathophysiology - Hematology Page 2 COMPLETE BLOOD COUNT Hematology Page 5 Case 1: A year-old white woman admitted for the 2nd time.
Utilize case studies to demonstrate how enhanced technologies can benefit the patient and clinician, as well as enhance efficiency in your hematology workflow.
Reference ranges for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples.. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the area of pathology that is generally concerned with analysis of bodily fluids.
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