Peripheral blood smear: Difference between revisions

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|  Hypochromasia||MCH : 23 - 26||MCH : 21 - 23||MCH <20
|  Hypochromasia||MCH : 23 - 26||MCH : 21 - 23||MCH <20
|-
|-
|  Anisocytosis||RDW: 14.5<ref name=MrLabTest>{{cite web|url=https://www.mrlabtest.com/high-RDW-blood.htm|website=MrLabTest|title=High RDW level in the blood}} Last update: 12/01/2021</ref> !! Terminology<ref name=MrLabTest/>  or 16<ref name=HongKong/> - 18||RDW : 18 - 22<ref name=HongKong/> or 26<ref name=MrLabTest/> ||RDW > 22<ref name=HongKong/> or 26<ref name=MrLabTest/>  
|  Anisocytosis||RDW: 14.5<ref name=MrLabTest>{{cite web|url=https://www.mrlabtest.com/high-RDW-blood.htm|website=MrLabTest|title=High RDW level in the blood}} Last update: 12/01/2021</ref> or 16<ref name=HongKong/> - 18||RDW : 18 - 22<ref name=HongKong/> or 26<ref name=MrLabTest/> ||RDW > 22<ref name=HongKong/> or 26<ref name=MrLabTest/>  
|-
|}
|}


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<gallery mode=packed heights=150>
<gallery mode=packed heights=150>
File:Human blood film with acanthocytes 02.jpg|'''Acanthocytes''' ("spur cells")
File:Human blood film with acanthocytes 02.jpg|'''Acanthocytes''' ("spur cells")
File:Micrograph of an elliptocyte on a peripheral blood smear 02.jpg|thumb|'''Elliptocytes'''
</gallery>
</gallery>
These are counted as a percentage of visible red blood cells:<ref name=HongKong/>
These are counted as a percentage of visible red blood cells:<ref name=HongKong/>
{|class=wikitable
{|class=wikitable
|-
|-
! Interpretation
|
! Image
! Rare/Occasional
! Rare/Occasional
! Moderate amount of
! Moderate amount of
! Many/Abundant
! Many/Abundant
|-
|-
| Polychromasia||3 - 5%||5 - 25%||>25%
! Polychromasia
|  
|3 - 5%||5 - 25%||>25%
|-
|-
| Spherocytes||1 - 5%||5 - 25%||>25%
! Spherocytes
| [[File:Micrograph of a spherocyte.jpg|120px]]
|1 - 5%||5 - 25%||>25%
|-
|-
| Schistocytes||up to 2%||2 - 25%||>25%
! Schistocytes
| [[File:Micrograph of schistocytes.jpg|120px]]
|up to 2%||2 - 25%||>25%
|-
|-
| Target cells (codocytes)||up to 3%||3 - 25%||>25%
! Target cells (codocytes)
| [[File:Micrograph of a target cell.jpg|120px]]
|up to 3%||3 - 25%||>25%
|-
|-
| Tear drop cells||up to 2%||2 - 25%||>25%
! Tear drop cells
| [[File:Micrograph of a tear drop cell (dacrocyte).jpg|120px]]
|up to 2%||2 - 25%||>25%
|-
|-
| Burr cells (echinocytes)||1 - 3%||3 - 10%||>10%
! Burr cells (echinocytes)
| [[File:Micrograph of an echinocyte on a peripheral blood smear.jpg|120px]]
|1 - 3%||3 - 10%||>10%
|-
|-
| Sickle cells (drepanocytes)||3 - 5%||5 - 25%||>25%
! Sickle cells (drepanocytes)
| [[File:Micrograph of a sickle cell.jpg|120px]]
|3 - 5%||5 - 25%||>25%
|-
|-
| Elliptocytes||1 - 5%||5 - 25%||>25%
! Elliptocytes
| [[File:Micrograph of an elliptocyte on a peripheral blood smear 02.jpg|120px]]
|1 - 5%||5 - 25%||>25%
|-
|-
| Basophilic stipplings||up to 2%||2 - 25%||>25%
! Basophilic stipplings
| [[File:Micrograph of a red blood cell with basophilic stippling.jpg|120px]]
|up to 2%||2 - 25%||>25%
|-
|-
| Howell Jolly bodies||up to 1%||2 - 3 %||>3%
! Howell Jolly bodies
| [[File:Micrograph of a Howell–Jolly body in a red blood cell.jpg|120px]]
|up to 1%||2 - 3 %||>3%
|-
|-
|}
|}
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===Platelets===
===Platelets===
[[File:Micrograph of a giant platelet.jpg|thumb|220px|The finding of '''giant platelets''' may be reported as "Occasional/multiple giants platelets, which suggests increased platelet turnover".]]
If CBC is performed, use count to determine whether platelets are "normal in number" or whether there is "thrombocytopenia" or "thrombocytosis". If no CBC, count platelets within a high power oil immersed field, which should normally be 8 to 20.
If CBC is performed, use count to determine whether platelets are "normal in number" or whether there is "thrombocytopenia" or "thrombocytosis". If no CBC, count platelets within a high power oil immersed field, which should normally be 8 to 20.


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*'''Clumping''' of platelets (which can cause a falsely low automatic platelet count). If present, check with the lab if it was sent in EDTA (which may cause artefactual clumping) and ask to have a blood sample sent in sodium citrate instead. Also, look for satellitosis (platelets attached around white blood cells).
*'''Clumping''' of platelets (which can cause a falsely low automatic platelet count). If present, check with the lab if it was sent in EDTA (which may cause artefactual clumping) and ask to have a blood sample sent in sodium citrate instead. Also, look for satellitosis (platelets attached around white blood cells).
*'''Schistocytes''' among red blood cells.
*'''Schistocytes''' among red blood cells.
The finding of '''giant platelets''' may be reported as "Occasional/multiple giants platelets, which suggests increased platelet turnover".


===White blood cells===
===White blood cells===
Retrieved from "https://patholines.org/Peripheral_blood_smear"