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Topic: Blood smear


  
  Blood Smear: The Test
The blood smear is primarily ordered to evaluate blood cell populations when a CBC with differential performed with an automated blood cell counter indicates the presence of abnormal or immature cells.
When a platelet count is suspiciously low, and/or the automated blood cell counter presents with a warning, the blood smear is used to determine whether or not there are adequate platelets present and to verify the presence of giant platelets, and/or platelet clumps.
Since blood transfusions involve giving someone another person’s red blood cells, white blood cells (although these are not normally functional in the recipient), and sometimes platelets, a recent transfusion will affect both automated cell counts and the blood smear.
www.labtestsonline.org /understanding/analytes/blood_smear/test.html   (1183 words)

  
 HEMATOLOGY PROCEDURE: BLOOD SMEAR PREPARATION   (Site not responding. Last check: 2007-11-06)
A thin blood smear is stained with Wright-Giemsa stain to enable evaluation of white blood cell, red cell and platelet morphology.
Blood with a high hematocrit must be spread with a lower angle or the smear will be short and too thick to allow differentiation of cells.
The smear is labeled on the frosted edge of the slide or the thick end of the blood with the patient's last name, first name, specimen number and date.
medic.med.uth.tmc.edu /path/00000288.htm   (470 words)

  
 Dr. Koop - Blood smear   (Site not responding. Last check: 2007-11-06)
Blood is drawn from a vein, usually on the inside of the elbow or the back of the hand.
The blood may be collected in a pipette (small glass tube), on a slide, onto a test strip, or into a small container.
The smear shows the relative number and kinds of white blood cells (differential), abnormalities in the shape of all types of blood cells, and a rough estimate of white cell and platelet counts.
www.drkoop.com /ency/article/003665.htm   (469 words)

  
 Apparatus for selectively segmenting red and white blood corpuscles contained in blood smear - United States Patent ...
Clinical examination of blood usually performed includes hematrocrit measurement, hemoglobin measurement, counting of the number of red blood corpuscles, counting of the number of white blood corpuscles, counting of the number of serums, counting of the number of the reticulocytes and identification and counting of the number of white blood corpuscles.
Thereafter, the blood corpuscles on the slide are irradiated with a monochromatic light having a wavelength of 410 nm to form a video signal of the micrographic image thereof.
The image of the blood corpuscles illuminated by the monochromatic light having a wavelength of 410 nm is applied to the binary circuit 11 through amplifier 10 and then sampled by the sampling pulse sent from control circuit 3 through a conductor 12.
xrint.com /patents/us/3963350   (4147 words)

  
 Blood Smear: Test Sample
A peripheral blood smear is a snapshot of the cells that are present in the blood at the time that the sample is obtained.
Along the leading feathered edge of the smear the blood cells are present on the slide in a single layer.
A blood sample is obtained by inserting a needle into a vein in the arm or by pricking a finger, ear, or -- in the case of an infant -- a heel.
www.labtestsonline.org /understanding/analytes/blood_smear/sample.html   (389 words)

  
 Malaria Site: Peripheral Smear For Malaria Parasite   (Site not responding. Last check: 2007-11-06)
eripheral smear examination for malarial parasite is the gold-standard in confirming the diagnosis of malaria.
The peripheral blood smear provides comprehensive information on the species, the stages, and the density of parasitemia with a sensitivity of 5 to 10 parasites/µL of blood for an experienced laboratory professional.
Thin blood films stained by Giemsa’s or Leishman’s stain are useful for specification of parasites and for the stippling of infected red cells and have a sensitivity of 200 parasites/µl (0.004%).
www.malariasite.com /malaria/staining_techniques.htm   (1374 words)

  
 [No title]
Smear No. 85 is a normal blood smear showing normal red blood cell morphology, normal platelets and a normal population of white cells.
This smear is from an infant with a viral infection.
This push smear preparation is made from a mixture of blood and New Methylene Blue stain after incubation at room temperature for 10 minutes.
www.urmc.rochester.edu /smded/Histology/Manuals/Blood/Labs.html   (855 words)

  
 Avian Hematology: Basics for the Practitioner   (Site not responding. Last check: 2007-11-06)
Other methods of blood collection in the literature should be rarely utilized due to their inherent hazardous nature, or their resulting in inaccurate analysis results.
Blood smears should be made immediately after blood collection, even if the rest of the blood evaluation cannot be performed.
Immature heterophils are rarely seen in psittacine blood smears, but are identified by their increased cytoplasmic basophilia, decreased nuclear lobation, and immature granules.
www.vet.uga.edu /ivcvm/1999/Phillips/phillips.htm   (3362 words)

  
 The Blood Cells
This is a short description of the blood cells and includes a simple experiment which allows you to become familiar with the cells of this precious liquid.
The density of the leukocytes in the blood is 5000-7000 /mm
As the blood of vertebrates is the fruit of a long evolution, as you descend the evolutionary ladder, you will see simpler types of blood, but you will also find a continuity which will help you to understand the blood of different animals.
www.funsci.com /fun3_en/blood/blood.htm   (3795 words)

  
 Blood Smear With Spirochetes   (Site not responding. Last check: 2007-11-06)
Blood Supply of the Liver May be customized by editing labels, or by combining artwork with graphics from our 15,000 image li...
The artery is a pulsing blood vessel coveying red or aerated blood in the direction away from the heart.
This white blood cell is a digital 3-D model that can be easily repositioned, relit, recomposed, and rerendered to suit your...
www.indexedvisuals.com /html/Search/BloodSmearwithSpirochetes.htm   (208 words)

  
 Examination of a mammalian blood smear
Whole human or animal blood that has been treated with an anticoagulant can be maintained under refrigeration for an extended period of time and remain of use for research or for clinical applications.
A small drop of blood is placed at one end of a very clean glass slide, and the edge of a second slide is drawn across the drop at an angle so that capillary action spreads the drop along the edge.
After a short dip in buffer and/or a rinse in deionized water, the smear is gently blotted dry with bibulous (absorbant) paper.
www.ruf.rice.edu /~bioslabs/studies/sds-page/bloodcytology.html   (1238 words)

  
 ► Peripheral smear
Blood is drawn from a vein (venipuncture), usually from the inside of the elbow or the back of the hand.
The puncture site is cleaned with antiseptic, and a tourniquet (an elastic band) or blood pressure cuff is placed around the upper arm to apply pressure and restrict blood flow through the vein.
Information is obtained about the relative number and kinds of white blood cells (differential), morphological (shape) abnormalities of all types of blood cells, and a rough estimate of white cell and platelet counts.
www.umm.edu /ency/article/003665.htm   (485 words)

  
 Blood smear - Guidelines for blood smear preparation and staining procedure for   (Site not responding. Last check: 2007-11-06)
blood smears, control samples, external quality assessment, guidelines Blood smear analysis is a well known technique in medical laboratories.
Blood Smear for Parasites; Loa loa Smear; Microfilarial Smear; Parasitology Examination for Malaria; Blood smears or 10-15 mL heparinized or EDTA blood
Echinocytosis is a common observation in blood smears from a variety of animal species.
blood-smear.searchforfind.com   (255 words)

  
 Normal Blood Smear   (Site not responding. Last check: 2007-11-06)
This slide depicts normal adult peripheral blood stained with Wright's stain and viewed under 1000 X magnification.
The white blood cell in the center is a segmented neutrophil.
Red blood cells predominated and show a pale center due to their biconcave shape.
www.academic.marist.edu /~jzmz/HematologyI/Bloodsmears1-2.html   (53 words)

  
 Smear spot   (Site not responding. Last check: 2007-11-06)
I noticed that a distinctively shaped blood smear on JFK's back is visible in more than one of the autopsy photos which might allow a new appreciation of the back wound level.
The blood smear is visible on the right shoulder, marked by the arrow.
Notice that in the lower right photo the blood smear is curving up the shoulder, and that it is not too far from the top of the shoulder.
www.nevarts.com /smear   (1663 words)

  
 Preparing a Good Blood Smear   (Site not responding. Last check: 2007-11-06)
Place a small drop of blood close to the frosted end of a clean slide that is on a flat surface.
Note: In a good film, there is a thick portion where the original drop spreads out (near the white, frosted end) and a thin portion that disappears into a feathered edge (on the left in the "good slide" picture at the end of the movie; the feathered edge is at the top in the cartoon).
The smear should have a smooth, even appearance and should not have either thick sposts or holes.
web.indstate.edu /thcme/PSP/labtests/bloodsmear.htm   (334 words)

  
 Pathology Review Carousel 20   (Site not responding. Last check: 2007-11-06)
In megaloblastic anemia due to B12 or folate deficiency all of the hematopoietic cell lines (granulocytes, platelets, and red cells) may be affected and be decreased in the peripheral blood.
Peripheral blood smear showing schizocytes and red blood cell fragments and decreased platelets in a patient with disseminated intravascular coagulation.
Peripheral blood smear showing malarial parasites in two RBCs in the center of the field.
medic.med.uth.tmc.edu /edprog/PATH/HemaI.HTM   (263 words)

  
 blood smear: Impact Malaria: paludisme, information for the public and healthcare professionals - plasmodium ...
As they ingurgitate microscopic quantities of blood, the anophelines also take in Plasmodia which multiply in the insect, after a few weeks these plasmodia give rise to infesting forms which will accumulate in the mosquito's saliva glands.
Transmission to another subject takes place when the mosquito takes another blood meal, in the human body, the Plasmodia begin to multiply intensely in the liver.
According to a classification proposed by the WHO, these areas are classified in 3 categories, in relation to the frequency and the importance of the resistance to the antimalarial treatments, in the areas of partial resistance and especially total resistance groups II and III, drug combinations of two antimalarial molecules are generally used.
www.impact-malaria.com /malaria_plasmodium/blood-smear.htm   (224 words)

  
 SIU SOM Histology INTRO
They are about 12 µm in diameter in blood smear preparations (about twice the size of red blood cells).
Neutrophils gather rapidly in peripheral tissue during acute inflammation, by emigrating from the blood.
In blood smears, their nuclei are typically indented, sometimes deeply so, with a kidney-bean or bent-horseshoe shape.
www.siumed.edu /~dking2/intro/bldcells.htm   (1355 words)

  
 Full Blood Count and Blood Smear - Patient UK
Blood cells, which can be seen under a microscope, make up about 40% of the blood's volume.
Blood cells are made in the bone marrow by blood 'stem' cells.
A blood sample is taken which is prevented from clotting by using preservatives in the blood bottle.
www.patient.co.uk /showdoc/27000454   (850 words)

  
 Merck Vet. Edition - Blood Smear Preparation and Evaluation
The stained smear is screened under low-power magnification for acceptable distribution and staining of cells.
A good smear should have a feathered edge and a broad monolayer in which RBC are evenly distributed and show minimal overlap.
Equal quantities of blood and 1% new methylene blue are incubated in a tube for 15 min at room temperature.
www.merckvetmanual.com /mvm/htm/bc/150216.htm   (1556 words)

  
 Hemobartonellosis in Cats   (Site not responding. Last check: 2007-11-06)
Measuring between 0.5 and 1.5 µm in diameter or length, this blood parasite exists as paired cocci, short rods, or small rings on the red blood cell plasma membrane.
The primary method of red blood cell destruction is immune-mediated, although some direct damage may result from the presence of the parasite.
Polychromasia, three metarubricytes, and one erythrocyte with a Howell-Jolly body are present in the blood smear of a cat with hemobartonellosis.
www.vet.uga.edu /vpp/CLERK/Cowgill/Index.htm   (952 words)

  
 BLOOD SMEAR - Definition   (Site not responding. Last check: 2007-11-06)
This is the microscopic examination of anticoagulated blood obtained from vein pucture.
The characteristics of red cells, white cells, and platelets are observed for their sizes, shapes, numbers, color, morphologies, and the way their group together.
Certain presentation of blood smear may suggest disease conditions.
www.hyperdictionary.com /dictionary/blood+smear   (45 words)

  
 Lymphocyte typing
The total number of white blood cells is calculated, either through microscopic examination of a blood smear or by using automated counting equipment.
For a white blood cell count with differential, 100 white blood cells are counted and the proportion of each type is calculated.
In this procedure, a tube of blood is placed in a centrifuge, a piece of equipment that spins the tube in circles at high speed.
www.healthatoz.com /healthatoz/Atoz/ency/lymphocyte_typing.jsp   (775 words)

  
 Wuchereria bancrofti (bancroftian filariasis, elephantiasis)   (Site not responding. Last check: 2007-11-06)
The microfilariae are ingested by a mosquito when it feeds, and in the mosquito the microfilariae transform into infective larvae.
Like other filarial infections, bancroftian filariasis is diagnosed most often by demonstrating microfilariae in a blood smear.
Bancroftian filariasis, and a similar disease caused by Brugia malayi, are distributed throughout much of central Africa and southern and S.E. Asia (view geographic distribution of lymphatic filariasis).
www.biosci.ohio-state.edu /~parasite/wuchereria.html   (372 words)

  
 Blood Smear
The scale was then set using that pixel measurement (174 pixels) and it was calculated that there are 5.80 pixels per micron.
Diameter measurements RBC's: The diameter of ten random red blood cells were taken.
Area measurements of RBC's: Using the freehand selections tool in Image J each of the ten randomly chosen red blood cells were enclosed and the areas measured.
darwin.wcupa.edu /b515site/pzoder/BloodSmear.html   (216 words)

  
 Blood   (Site not responding. Last check: 2007-11-06)
Observation and characterization of the formed elements present in a slide or photomicrograph of a blood smear.
Examine the preparation at low magnification and select an area in the center of the smear for further study with the high, dry lens.
In a smear, the general architecture of the marrow is destroyed as the cells are spread onto the slide.
www.complab.nymc.edu /Histology/BloodFormation/Blood.htm   (913 words)

  
 BLOOD SMEAR   (Site not responding. Last check: 2007-11-06)
A sample of blood is applied to a microscope slide and then studied under the microscope.
Red blood cell appearance and differential is analyzed.
Red blood size, shape, and color are commented on.
www.medhelp.org /glossary2/new/GLS_0809.HTM   (88 words)

  
 A (blood) smear campaign -- Shattil 101 (7): 2453 -- Blood
blood smears, especially when the workup suggests that there is
In this country, abnormalities in the peripheral blood smear are frequently discovered by the clinical hematology laboratory,
the blood smear by the patient's physician, whose responsibility
www.bloodjournal.org /cgi/content/full/101/7/2453   (654 words)

  
 blood smear: ez-papers.com - easy access to quality free term paper, free college papers, custom research papers, ...
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www.ez-papers.com /term-papers/96010/blood-smear.html   (357 words)

  
 Blood Smear, Path Morphologic Exam   (Site not responding. Last check: 2007-11-06)
Blood smears are routinely examined by technologists according to the criteria listed under 'Hemogram, Blood'.
Examination can be requested on either a current CBC or in review of a smear, if available.
Blood smears reviewed will be held in a permanent file for future reference.
www.medicine.uiowa.edu /Path_Handbook/handbook/test308.html   (125 words)

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