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                   CLS  2551   HEMATOLOGY  PATHOLOGY
                                                 for the
                   CLINICAL LABORATORY TECHNICIAN

                      DIFFERENTIAL  ASSIGNMENTS

The following slides are your assignment for this semester.  Follow the directions to complete each assignment.
01    Obtain a slide and evaluate it by performing the following:
        A.    Determine the relative WBC count (%).
        B.    Estimate the platelet morphology and number of platelets/OIF.
        C.    Evaluate erythrocyte morphology (for this you will need the indices).
        D.    Write the definitive diagnoses for each slide.
02    As you complete the case studies and stained blood film evaluations, you will
develop the skills needed for working in the hematology unit of a clinical lab.
As a student in the two-year program, you will complete these assignments
with an accuracy level of 80% or better and accrue a cumulative grade of
70% or better.

                                ABOUT THE DEFINITIVE DIAGNOSIS
01
  Use the report form provided by the Program and evaluate the following blood smears.
02   The instructor will evaluate two of your blood film reports and return it for corrections.  After this, your reports will be graded and returned when each diff has been completed by the class.
03    Calculate the indices for each patient.  Also show your calculations.
04   For this class:
        A.    Identifying the erythrocyte population as normocytic, normochromic or if
                the RBC count, hemoglobin, and hematocrit are increased or decreased
                then are the erythrocytes microcytic, macrocytic, normocytic, hypochromic,
                or normochromic?   Use the term hyperchromic, only if the patient is
                diagnosed with hereditary spherocytosis. 
        B.    Items 04 and 05 are to assist you in learning and using hematology
                terminology. 
05   For the leukocytes, you will have to calculate the absolute leukocyte count for each leukocyte and determine if it is neutropenia, neutrohilia, lymphocytosis, lymphocytopenia, monocytosis, monocytopenia, eosinophilia, eosinopenia, basopenia, and/or basophilia.
06   If the WBC count is abnormal, then it is either leukopenia or leukophilia.  If the RBC count is abnormal, then it is erythropenia or erythrophilia.  If the platelet count is abnormal, then it is thrombocytopenia or thrombocytophilia.
07   If any nucleated red blood cells are present, you must calculate a corrected WBC count.   Note:  Some laboratories will not do a corrected count if the NRBC count is only a few cells.
08   Enumerate and report smudge cells on every slide and report out as the # of smudge cells per 100 WBC's.
09    When counting and evaluating platelets:
         A.    Enumerate the large platelets as you perform the 10 field platelet estimate
                 and report them as "# of large platelets per 10 fields.
         B.    Enumerate the giant and bizarre platelets per 100 WBC's.
10    If you see five-lobed neutrophils, report how many you see.
11    If you see six or more lobed neutrophils, report how many you see.
12    If you see vacuoles in any of the WBC's, report the leukocyte in which you see vacuoles.
13    DO NOT quantitate  hyperchromia in RBC's unless the patient has hereditary spherocytosis.
14    Show calculations for "rule of three" and note if the RBC's, hemoglobin, and hematocrit follow rule of three.
15    All information boxes for platelets must be completed.

 

Use the following table for the adult normal absolute leukocyte count/μL where the normal WBC range is 5,000 to 10,500/μL.
        Bands                            0 - 600
        Neutrophils              2000 - 6800
        Lymphocytes            1000 - 4000
        Monocytes                  200 - 800
        Eosinophils                     0 - 300
        Basophils                        0 - 100

Diff- #01      PATH  1004-97
Patent is a 8 y/o female.   WBC  =  47,600/μL,  RBC  =  2.96 × 106/μL,   Hgb =  8.9 g/dL,  Hct  =  26.4%,  RDW   =  24.6%,   Plt Ct 
=  132 × 103/μL,   MPV  =  8.2  fL.        She has been on chemotherapy.  
01    Complete the definitive diagnosis information.
02    No other questions.

Diff- #02     PATH  1015
Patient is a young adult female.  WBC  =  4,100/μL,  RBC  =  3.12 × 106/μL,   Hgb =  11.3 g/dL,  Hct  =  32.7%,  RDW   =  14.7%,   Plt Ct  =  43 × 103/μL,   MPV  = 9.0 fL.   Patient was diagnosed with septicema.   Look to see if Dohle bodies and intracelluar inclusions are present.
01    Complete the definitive diagnosis information.
02    No other questions.

Diff-  #03     PATH  1016
Patient is a young adult female.   WBC  =  6,800/μL,  RBC  =  3.91 × 106/μL,   Hgb =  12.3 g/dL,  Hct  =  35.3%,  RDW   = 11.9%,   Plt Ct  =  191 × 103/μL,   MPV  =  7.3    
01    Complete the definitive diagnosis information.
02    No other questions.

Diff- #04       PATH 1017
This female patient date of birth (12-17-66)  who was prediagnosed with AIDS.  WBC  =  4,000/μL,  RBC  =  2.89 × 106/μL,   Hgb =  7.5 g/dL,  Hct  =  23.4%,  RDW   =  15.2%,   Plt Ct  =  287 × 103/μL,   MPV  =  7.1 fL.
01    Complete the definitive diagnosis information.
02    What in this CBC is evident that would support this patient's diagnosis?

Diff- #05       PATH   1020
The patient is an 27 y/o female and under a physician's care..  WBC  =  14,000/μL,  RBC  =  3.1 × 106/μL,   Hgb =  8.8 g/dL,  Hct  =  27.3%,  RDW   =  17.9%,   Plt Ct  =  32.2 × 103/μL,   MPV  =  6.4 fL.
On this slide, you are looking for a specific cell to make your primary diagnosis.  The patient was treated with oxygen..
01    Complete the definitive diagnosis information.
02    What is the primary diagnosis.
03    What is the prognosis for this patient?

Diff-  #06  PATH 1023
The patient is an adult female born.   WBC  =  4,100/μL,  RBC  =  2.66 × 106/μL,   Hgb =  10.7 g/dL,  Hct  =  33.5%,  RDW   =  15.4.6%,   Plt Ct  =  200 × 103/μL,   MPV  =  7.8 fL.
 Note....erythrocytes  are important to this diagnosis.
01    Complete the definitive diagnosis information.
02    Why is the RDW not significant in this CBC?

Diff-   #07  PATH  1024
The patient is an adolescent male.     WBC  =  ????/μL,  RBC  =  2.66 × 106/μL,   Hgb =  6.6 g/dL,  Hct  =  22.7%,  RDW   =  27.5%,   Plt Ct  =  ???? × 103/μL,   MPV  =  Not given in the report
This is a RBC disorder.  Pay attention t o the erythrocyte line.
01    Complete the definitive diagnosis information.
02    What medical term can describe this condition.
03    Write a reason why there would not be a WBC or platelet count provided?   If you have questions about this, see the instructor.

Diff-  #08 PATH  1030
The patient is an adult male, who was diagnosed with hepatitis and was jaundiced when examined.   WBC  =  7,700/μL,  RBC  =  4.46 × 106/μL,   Hgb =  14.6 g/dL,  Hct  =  43.4%,  RDW   =  15.6%,   Plt Ct  =  236 × 103/μL,   MPV  =  8.9 fL.
Watch for reactive lymphocytes. 
01    Complete the definitive diagnosis information.
02    No other questions.

Diff -  #09      PATH  1033
The patient is a 57 y/o female hospitalized with a TIA and DM..  WBC  =  7,000/μL,   RBC  =  3.83 × 106/μL,  Hgb =  11.1 g/dL,   Hct  =  33.3%,  RDW  =  14.1%,  Plt. Ct  =  169 × 103/μL,  MPV  =  8.0 fL. 
01    Complete the definitive diagnosis information. 
02    What is the meaning of the acronyms TIA and DM?

Diff - #10        PATH 1035
The patient is an elderly male.   WBC  =  27.6 × 103/μL,  RBC =  2.63 × 106/μL,   Hgb  =  10.0 g/dL,   Hct  =  30.9%,  RDW  =  17.4%,  Plt. Ct.  =  28.0 × 103/μL,   MPV  =  7.2 fL.
The patient has either a malignancy or the start of a leukemoid reaction. 
01    Complete the definitive diagnosis information.
02    Is this a leukemic condition, a leukemoid reaction, or is the information
        insufficient?
03    What laboratory test is available that would help you to determine if this
         is a leukemoid reaction or not?

Diff - #11        PATH  1046
The patient is an elderly female.   WBC  =  2.3 × 103/μL,   RBC  =  1.98 × 106/μL,  Hgb  =  4.1 g/dL,   Hct  =  12.7%,  RDW  =  21.4%,  Plt. Ct.  =  63.0 × 103/μL,  MPV  =  7.5 fL.    This is important......the blood was diluted 1:4 in order to obtain the above results.  
01    Write the corrected CBC results.  The RDW and MPV do not have to be corrected....why is this?
02    Complete the definitive diagnosis information.  
03    With what disorder did the physician diagnose this patient as having?

Diff-   # 12    PATH  1050

The patient is an infant male.     WBC  =  42,300/μL,  RBC  =  2.48 × 106/μL,   Hgb =  8.0 g/dL,  Hct  =  24.3%,  RDW   =  17.7%,   Plt Ct  =  180 × 103/μL,   MPV  =  7.0 fL.
Pay attention to the RBC population.  
01    Complete the definitive diagnosis information.  
02    Why is the physician concerned about the platelet count?
 

Diff-    #13     PATH 2044
Patient is a 89 y/o female.   WBC  =  7,700/μL,  RBC  =  3.70 × 106/μL,   Hgb =   11.9 g/dL,  Hct  =  35.0%,  RDW   =  16.2%,   Plt Ct  =  185 × 103/μL,   MPV  =  8.5 fL. 
O1    Complete the definitive diagnosis information.
02    No other questions

Diff-    #14        PATH  2065
The patient is a 72 y/o female.   WBC  =  161,600/μL,  RBC  =  3.24 × 106/μL,   Hgb =  10.6 g/dL,  Hct  =  28.6%,  RDW   =  15.4%,   Plt Ct  =  28 × 103/μL,   MPV  =  7.4 fL.
01    Complete the definitive diagnosis information.  
02    What is the primary diagnosis?


Diff  -  #15        PATH 2075
The patient is a adult male.    WBC  =  9,200/
μL,  RBC  =  4.53 × 106/μL,  Hgb  =  13.7 g/dL,   Hct   =  11.8%,  RDW  =  21.7%,   Plt. Ct.  =  9,900/μL,   MPV  =  7.9  fL.
01    Complete the definitive diagnosis information.  
02    No other questions.

Diff- #16         PATH  2078
The patient is a young adult female.  .  WBC  =  36,300/μL,  RBC  =  4.98 × 106/μL,   Hgb =  13.5 g/dL,   Hct  =  4-/4%,  RDW   =  13.0%,   Plt Ct  =  208 × 103/μL,   MPV  =  7.5 fL.
QUESTIONS
01.   Complete the definitive diagnosis information.  
02.   No other questions.

Diff- #17        PATH   2090

The patient is a very young female.  WBC  =  9,200/μL,  RBC  =  4.08 × 106/μL,   Hgb =  11.8 g/dL,  Hct  =  36.8%,  RDW   =  14.0%,   Plt Ct  =  264 × 103/μL,   MPV  =  5.5 fL.
Examine the stained blood film carefully and pay attention to the lymphocytes.
QUESTIONS.
01.    Complete the definitive diagnosis information.
02.    Is this a leukemic condition or something else?

DIFF- #18  (Bonus slide)        PATH  2093
The patient is a 17 y/o male.   WBC  =  12,150/μL,  RBC  =  4.67 × 106/μL,   Hgb =  14.5 g/dL,  Hct  =  42.3%,  RDW   =  13.3%,   Plt Ct  =  145 × 103/μL,   MPV  = 7.0 fL
QUESTIONS.
01.    Complete the definitive diagnosis information.
02.    What is a probable primary diagnosis?

DIFF -- #19 (Bonus slide)    NS 103
The patient is a 17 y/o male.   WBC  =  7,700/μL,  RBC  =  4.05 × 106/μL,   Hgb =  12.7 g/dL,  Hct  =  37.6%,  RDW   =  13.1%,   Plt Ct  =  214 × 103/μL,   MPV  = 14.3 fL
 No questions.

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This page last updated 07/28/08