c) A manual white blood cell (WBC) count was performed. A total of 280 cells were counted in all 4-mm2 squares of a Neubauer-ruled chamber. A 1:20 dilution was used. Calculate the manual WBC count.
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c) A manual white blood cell (WBC) count was performed. A total of 280 cells were counted in all 4-mm2 squares of a Neubauer-ruled chamber. A 1:20 dilution was
used. Calculate the manual WBC count.
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- Melinda was working the day shift in the hematology laboratory. The laboratory’s protocol called for three levels of blood cell controls to be run at the following times: 1) at the beginning of the shift, 2) within each run of patient samples during the day and 3) any times reagents were changed. The mean for the low (abnormal) control for the red blood cell count was given as 2.00 x 10^12/L, the standard deviation was 0.15, and the confidence limit (acceptable control range) was 2.00 x 10^12/L +/- 2sd (or +/- 0.3). The first morning low control result was 2.10 (x 10^12/L). In five subsequent runs, the low control results were 2.16, 2.19, 2.20, 2.22 and 2.25. 1. Do these values represent a shift, a trend, or neither? 2. Should Melinda be concerned about these values? Explain. 3. Does Melinda need to take any action?a sample for WBC count was diluted by adding 20 µL of blood to 0.38 mL of diluting solution and then mixed. The Neubauer counting chamber was filled and the cells were counted in the 4 large squares on each side of the chamber. A total of 150 WBCs were counted. A. What is the dilution being used for the calculation? b. What is the total WBC count in the sample in 109 cells/L ?I will make your life a bit easier and not make you count four additional grids. So let's assume this was a random, relatively uniform sample and arbitrarily assign the other four squares to the exact same number of red blood cells. What is the Total red blood cell count? Calculate it as (#RBC you counted *5)*10,000 Is you answer normal? Edit View Insert Format Tools Table Paragraph v | в I U 12pt v
- A 38-year-old white woman was treated in the emergency department for severe lacerations and abdominal injuries sustained in an automobile accident. She was admitted to the hospital for observation and further evaluation. On admission, a complete blood count (CBC), urinalysis, and radiograph series were ordered. Her CBC results were as follows: Hemoglobin 10.5 g/dL Hct 34% RBC 3.8 × 1012/L WBC 12.0 × 109 /L The RBC indices were as follows: MCV 89.6 fL MCH 27.6 pg MCHC 31 g/dL The peripheral blood smear showed essentially normal RBC morphology and platelet distribution. Forty-eight hours after admission, a stat repeat CBC was ordered. The results were as follows: Hemoglobin 8.0 g/dL Hct 26% RBC 2.9 × 1012/L WBC 15.5 × 109 /L The RBC indices were all within their normal ranges. A peripheral blood smear showed normal RBC morphology, although some polychromatophilia was noted. The distribution of platelets had increased. A follow-up platelet count was 0.60 × 1012/L.…A 38-year-old white woman was treated in the emergency department for severe lacerations and abdominal injuries sustained in an automobile accident. She was admitted to the hospital for observation and further evaluation. On admission, a complete blood count (CBC), urinalysis, and radiograph series were ordered. Her CBC results were as follows: Hemoglobin 10.5 g/dL Hct 34% RBC 3.8 × 1012/L WBC 12.0 × 109 /L The RBC indices were as follows: MCV 89.6 fL MCH 27.6 pg MCHC 31 g/dL The peripheral blood smear showed essentially normal RBC morphology and platelet distribution. Forty-eight hours after admission, a stat repeat CBC was ordered. The results were as follows: Hemoglobin 8.0 g/dL Hct 26% RBC 2.9 × 1012/L WBC 15.5 × 109 /L The RBC indices were all within their normal ranges. A peripheral blood smear showed normal RBC morphology, although some polychromatophilia was noted. The distribution of platelets had increased. A follow-up platelet count was 0.60 × 1012/L.…A 38-year-old white woman was treated in the emergency department for severe lacerations and abdominal injuries sustained in an automobile accident. She was admitted to the hospital for observation and further evaluation. On admission, a complete blood count (CBC), urinalysis, and radiograph series were ordered. Her CBC results were as follows: Hemoglobin 10.5 g/dL Hct 34% RBC 3.8 × 1012/L WBC 12.0 × 109 /L The RBC indices were as follows: MCV 89.6 fL MCH 27.6 pg MCHC 31 g/dL The peripheral blood smear showed essentially normal RBC morphology and platelet distribution. Forty-eight hours after admission, a stat repeat CBC was ordered. The results were as follows: Hemoglobin 8.0 g/dL Hct 26% RBC 2.9 × 1012/L WBC 15.5 × 109 /L The RBC indices were all within their normal ranges. A peripheral blood smear showed normal RBC morphology, although some polychromatophilia was noted. The distribution of platelets had increased. A follow-up platelet count was 0.60 × 1012/L. Subsequently,…
- With the results below, do you think the patient requires a transfusion? Using current guidlines to support your answer , explain your reason. Investigation Result (normal range - female) Haematology Red cell count (x 1012/L) 4.0 (3.8 – 5.8) Haemoglobin (g/L) 123 (115 – 165) White cell count (x 109/L) 8.1 (3.6 – 11.0) neutrophils 2.9 (1.8 – 7.5) lymphocytes 4.5 (1.0 – 4.0) monocytes 0.62 (0.2 – 0.8) eosinophils 0.10 (0.1 – 0.4) basophils 0.02 (0.02 – 0.1) Platelets (x 109/L) 138 (140 – 400) Prothrombin Time (s) 20 (10 – 14) Activated Partial Thromboplastin Time (s) 45 (22 – 36) Biochemistry Serum Bilirubin (µmol/L) 50 (≤21) Serum ALP (IU/L) 300 (30 – 130) Serum AST (IU/L) 527 (≤32) Serum ALT (IU/L) 650 (10 – 35) Serum albumin (g/L) 37 (35 – 50) Urine: Microscopy Faeces: Microscopy WBC <5 per ml No Cryptosporidium seen RBC <5…I want to do a manual white blood cell differential count on this photo. I just need help with counting how many of each type of WBC there are (example: Lymphocyes-15, Segmented Neutrophils-12, monocytes-7, basophils-3, etc.) **** please note the smudged cells don't need to be counted! Just skip those plsWhen performing a differential, you notice that very large platelet clumps scattered throughout the blood smear. What should you do? WHY?
- Why do you discard the first four drops of the diluting fluid drawn up to 101 mark from the pipet? Name the different RBC diluting fluids. Why is Formol-citrate the best RBC diluting fluid? In case of polycythemia, the count is 8.0 x 10¹²/L, Explain the variation in technique.Create A hemoglobin A1C lab test (that indicates type 2 diabetes) and a normal lab testIn one square of a hemacytometer you count 55 cells. What is the approximate concentration of cells per l (liter) in this sample? (note that "^" means superscript, e.g. 10^2 means 10 to the 2nd power) The options are 5.5 X 10^5 2.75 X 10^8 5.5 X 10^8 2.75 X 10^5