PA 512 Week 2 CBC Interpretation Write-Up Example

Course	PA 512 CCM Hematology/Oncology
Week	2
Paper type	CBC interpretation write-up
Length	About 850 words, 4 pages
Format	APA 7 student paper
School	Chamberlain University
Program	Master of Physician Assistant Studies (MPAS)
Updated	October 2026

Free sample paper for PA 512 Week 2

CBC Interpretation Write-Up: Hemoglobin 8.9 g/dL With a Normal MCV, an MCHC of 36.5 and a High Red Cell Distribution Width in a 26-Year-Old With Jaundice

Student Name

Chamberlain University

PA 512: CCM Hematology/Oncology

Instructor Name

Month Day, Year

What this page is doingThe title carries the lead abnormality and the two indices that do the work, which tells a reader where the write-up is going.

CBC Interpretation Write-Up: Hemoglobin 8.9 g/dL With a Normal MCV, an MCHC of 36.5 and a High Red Cell Distribution Width in a 26-Year-Old With Jaundice

The Panel as Received

Complete blood count drawn at an urgent care center from K.B., an apprentice electrician of 26 who came in tired and jaundiced a fortnight after a throat infection. Values and reference intervals as printed by the laboratory:

Table 1

Complete Blood Count as Reported

Line	Result	Reference interval
White cells	7.8 × 10^9/L	4.0 to 11.0
Neutrophils	62% (4.84 × 10^9/L)	1.8 to 7.7 absolute
Lymphocytes	28% (2.18 × 10^9/L)	1.0 to 4.8 absolute
Monocytes	7% (0.55 × 10^9/L)	0.2 to 0.9 absolute
Eosinophils	2% (0.16 × 10^9/L)	0.0 to 0.5 absolute
Basophils	1% (0.08 × 10^9/L)	0.0 to 0.2 absolute
Red cells	2.90 × 10^12/L	4.2 to 5.8
Hemoglobin	8.9 g/dL	12.0 to 17.0
Hematocrit	24.4%	36 to 50
MCV	84 fL	80 to 100
MCH	30.7 pg	27 to 33
MCHC	36.5 g/dL	32 to 36
RDW	17.9%	11.5 to 14.5
Platelets	251 × 10^9/L	150 to 400
Reticulocytes	9.2%	0.5 to 2.5

Note. Note. Absolute differential counts are given as reported; percentages alone are not used for interpretation.

Naming the Lead Abnormality

The lead abnormality is anemia: hemoglobin 8.9 g/dL, with a hematocrit and red cell count reduced in proportion. Every other abnormal line in the panel either describes the red cells or reflects the marrow's response to the anemia, so they are read in that light rather than as separate problems.

What this page is doingNaming one lead abnormality and organizing the other lines around it keeps the write-up from treating seven flags as seven problems.

Indices That Do Work

The mean corpuscular volume of 84 fL places the anemia in the normocytic range. That narrows the field away from iron deficiency and thalassemia, which usually lower the MCV, and away from B12 or folate deficiency, which usually raise it (Cascio & DeLoughery, 2017). But a normal average can hide a mixed population, and two other indices say the cells are not uniform.

The red cell distribution width of 17.9% shows the cells vary in size more than usual. In a patient with a high reticulocyte count, part of that spread comes from reticulocytes, which are larger than mature red cells. If there is also a population of small cells, the average could sit in the normal range while the spread widens on both sides.

The mean corpuscular hemoglobin concentration of 36.5 g/dL is above the reference interval. A raised MCHC is uncommon and has few explanations: red cells that have lost membrane and become denser, as spherocytes do, or laboratory artifacts such as cold agglutinins or marked lipemia (Bolton-Maggs et al., 2012). The sample was not reported as clumped or lipemic. In a jaundiced young adult with a high reticulocyte count, a raised MCHC is the single index that most narrows the field, toward a hemolytic process with spherocytes.

What this page is doingUsing each index to narrow the field, and explaining why the raised MCHC matters most here, shows the indices doing work rather than being reproduced.

Production

Reticulocytes at 9.2% translate, once the low hematocrit is accounted for, to roughly 5.0%, and to an absolute figure near 267 × 10^9/L. The marrow is responding strongly, which points to red cells being lost or destroyed rather than underproduced.

The Other Cell Lines

White cells and platelets are normal, with every absolute count inside its interval. That matters. A process involving all three lines, such as marrow infiltration or a viral marrow suppression, becomes less likely when only the red cells are affected. The neutrophil and lymphocyte counts are read as absolute figures rather than percentages, since a percentage can look abnormal when another line changes.

What One Count Leaves Open

The CBC cannot tell destruction from bleeding, cannot see spherocytes and cannot say why the cells would be destroyed. The next steps follow from that: a peripheral smear to look at the cells directly, indirect bilirubin, lactate dehydrogenase and haptoglobin to look for evidence of destruction, and a direct antiglobulin test to separate an immune cause from a problem in the red cells themselves. A family history is also needed; K.B. mentioned that a parent "had their spleen out as a teenager."

What Was Not Flagged but Still Matters

The MCH of 30.7 pg is inside its interval and would be easy to pass over. It is worth one line: a normal MCH alongside a raised MCHC means each cell carries a normal amount of hemoglobin in a smaller volume, which is exactly what a cell that has lost membrane would look like. The platelet count, also normal, makes a combined destruction of red cells and platelets, as in some microangiopathic processes, less likely before the film is even examined. Neither line changes the lead abnormality, but both support the reading of the flagged ones.

Summary

Normocytic anemia with a raised MCHC, a widened RDW and a strong reticulocyte response, with normal white cells and platelets. The pattern points toward hemolysis with spherocytes, and the remaining tests are chosen to confirm destruction and separate immune from nonimmune causes.

References

Bolton-Maggs, P. H. B., Langer, J. C., Iolascon, A., Tittensor, P., & King, M. J. (2012). Guidelines for the diagnosis and management of hereditary spherocytosis: 2011 update. British Journal of Haematology, 156(1), 37-49. https://doi.org/10.1111/j.1365-2141.2011.08921.x

Cascio, M. J., & DeLoughery, T. G. (2017). Anemia: Evaluation and diagnostic tests. Medical Clinics of North America, 101(2), 263-284. https://doi.org/10.1016/j.mcna.2016.09.003

What the PA 512 Week 2 assignment asks for

Week two asks for a written interpretation of a complete blood count from the case. Reproduce the panel as received, in a grid, with absolute counts beside percentages where both are given, since they answer different questions. Name the lead abnormality and organize the other abnormal lines around it rather than treating each as a separate problem. Give the red cell indices a short block of their own and use each one to narrow the field, saying what it moves toward and away from. Address production through the reticulocyte count. Read the white cells and platelets in absolute terms. Point out what the count cannot tell you and which tests would answer those questions. Close with a short summary of the pattern. Cite a source for how the indices are used.

How the PA 512 Week 2 example is put together

The write-up opens with a table of fifteen lines exactly as the urgent care laboratory printed them, absolute differential counts included. Anemia is named as the lead abnormality, and the other red cell lines are read as descriptions of it. The MCV of 84 fL places the anemia in the normocytic group and away from iron deficiency, thalassemia and vitamin deficiency. The RDW of 17.9% is explained by a mixed population, young large cells beside small dense ones. The MCHC of 36.5 g/dL gets the longest paragraph, because few things raise it: spherocytes or artifacts such as cold agglutinins or lipemia. Reticulocytes show a strong response. White cells and platelets are normal in absolute terms. A short section notes that a normal MCH beside a high MCHC fits cells that have lost membrane. The close lists the smear, destruction markers, antiglobulin test and family history as next steps.

PA 512 Week 2 rubric: what full points look like

Reporting a differential as percentages where the absolute figure was asked for, or the reverse, costs more than any other slip here, because a proportion and a count answer different questions and the rubric usually names which it wants. After that comes an indices block reproduced faithfully and never used again. A write-up that flags seven lines and gives each its own unconnected paragraph loses points for missing the lead abnormality. Further deductions follow for an MCV used without the RDW beside it, for a raised MCHC passed over without comment, for normal white cells and platelets left unmentioned and for conclusions the count cannot support. The best write-ups reproduce the panel, name one lead abnormality, use each index to narrow the field, read production, check the other lines and say which tests come next.

Common PA 512 Week 2 mistakes, and how to avoid them

CBC write-ups often run long without getting anywhere, because every flagged line seems to need its own paragraph. With the panel from your case in hand, we can start by naming the lead abnormality and grouping the other lines around it, then use each index to narrow the field in plain sentences. Converting percentages to absolute counts, and explaining why the rubric asks for one or the other, is a common sticking point worth a few minutes. A closing paragraph on what the count leaves open, and which tests would close it, rounds out the write-up and is worth drafting with care. The interpretation is your own. If your section gives two counts a week apart, the custom sample reads them side by side and says what changed.

Get a PA-512 Week 2 example written to your instructions

Send the count your section supplied, any template file it posted and the rubric rows it marks against, and a custom example is built to them and returned within 24 to 48 hours, the first one free. If your figures arrive as an image, send the image, and the example reproduces those same values rather than a substitute set.

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PA 512 Week 2 questions, answered

Absolute figures or percentages?

Both where the assignment supplies both, and the rubric usually names which one carries the interpretation. A percentage shifts whenever any other population changes, so a proportion inside a low total says something different from an absolute figure. Send the rubric row with your request and the example reports in the form your section actually marks.

Does every abnormal line need its own paragraph?

Rarely. Most rubrics reward a ranked treatment, with the lead line argued at length and the others handled in a sentence each in relation to it. Paragraph parity across eight lines reads as a list rather than as interpretation, and it spends the word count the argument needed. Send the rubric and the example weights the lines the way your own section does.

Ours gives two counts a week apart. Does that change the write-up?

It adds a column and a comparison rather than a new structure. The same lead line is chosen, the indices are still applied to it, and one extra passage says what moved between the two and what held. Send both sets along with the assignment and the example is built across them.

Where can I find a free PA 512 Week 2 sample paper?

You can read a complete PA 512 Week 2 CBC write-up for normocytic anemia with a raised MCHC on this page.

Why does the PA 512 Week 2 sample focus on the MCHC?

Because a raised MCHC has few causes, spherocytes or a laboratory artifact, so it narrows the field more than any other index in this panel.