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Here is a thorough analysis of Ms. Hina's CBC report:
CBC Analysis - Ms. Hina (29F) | June 20, 2026
Patient Summary
- Age/Sex: 29 years, Female
- Referred by: Al Fatima Clinic
- Lab's own interpretation: Neutrophilic leukocytosis with monocytosis; normocytic normochromic RBCs; adequate platelets; CRP suggested
Abnormal Values at a Glance
| Parameter | Result | Reference Range | Status |
|---|---|---|---|
| WBC Count | 11,680 /mm³ | 4,000-10,000 | ↑ HIGH |
| Lymphocytes | 17% | 20-40% | ↓ LOW (relative) |
| Absolute Neutrophil Count | 8,240 /mm³ | 2,000-7,000 | ↑ HIGH |
| Absolute Monocyte Count | 1,040 /mm³ | 200-1,000 | ↑ HIGH |
| MCHC | 32 g/dL | 32-35 | Low-normal |
Detailed Parameter-by-Parameter Analysis
Red Cell Parameters - All Normal
- Hb 13.0 g/dL - within normal range (12-15 g/dL for females) - no anemia
- RBC 4.60 mil/mm³ - normal (3.80-4.80)
- Hematocrit 41% - normal (36-46%)
- MCV 89 fl - normocytic (83-101 fl)
- MCH 28 pg - normal (27-32 pg)
- MCHC 32 g/dL - low-normal boundary (32-35 g/dL)
- RDW-CV 15% - at upper limit (11.6-15.0%) - mild anisocytosis, borderline
- Platelets 389,000 /mm³ - normal (150,000-425,000)
The peripheral smear confirms normocytic, normochromic RBC morphology with adequate platelets - no evidence of iron deficiency, B12/folate deficiency, or hemolytic anemia.
White Cell Parameters - KEY FINDINGS
1. Leukocytosis (WBC 11,680 /mm³)
The total WBC is mildly elevated above the 10,000 /mm³ upper limit. This is driven by:
2. Neutrophilic Leukocytosis (ANC 8,240 /mm³) - the dominant finding
- Neutrophils at 71% of a raised total WBC = absolute neutrophilia
- ANC of 8,240 is above the 7,000 upper limit
- According to Robbins & Kumar Pathologic Basis of Disease (Table 13.3), neutrophilic leukocytosis is classically caused by:
- Acute bacterial infections (especially pyogenic organisms) - most common
- Sterile inflammation from tissue necrosis (MI, burns)
The trend over prior visits is also notable:
- Sep-2023: WBC 9,150 (borderline)
- Dec-2024: WBC 6,100 (normal)
- Dec-2024 (later): WBC 11,200 (elevated)
- Jun-2026: WBC 11,680 (elevated, rising again)
3. Monocytosis (Absolute Monocyte Count 1,040 /mm³)
- AMC of 1,040 is above the 1,000 /mm³ upper limit (mildly elevated)
- Per Robbins & Kumar (Table 13.3), monocytosis is associated with:
- Chronic infections - tuberculosis (TB), bacterial endocarditis, rickettsiosis, malaria
- Autoimmune disorders - SLE, other collagen-vascular disease
- Inflammatory bowel diseases - ulcerative colitis, Crohn's
- The combination of neutrophilia + monocytosis is a notable pattern pointing toward a subacute/chronic infectious or inflammatory process
4. Relative Lymphopenia (17%)
- Absolute lymphocyte count (2,030 /mm³) is actually normal (1,000-3,000 /mm³)
- The low percentage (17%) reflects a relative lymphopenia - the neutrophils dominate the differential
- This is expected in the context of active bacterial infection/inflammation (stress response)
Trend Analysis (Serial CBCs)
| Date | WBC | Neutrophils % | Lymphocytes % | Comment |
|---|---|---|---|---|
| Sep-2023 | 9,150 | 54% | 26% | Borderline high WBC |
| Dec-2024 | 6,100 | 53% | 35% | Normal - resolved? |
| Dec-2024 | 11,200 | 79% | 14% | Acute episode |
| Jun-2026 | 11,680 | 71% | 17% | Persistent/recurrent leukocytosis |
The pattern shows recurrent or persistent neutrophilic leukocytosis - not a one-time acute episode. This is clinically significant and argues against simple acute infection alone.
Clinical Interpretation & Differential Diagnosis
Given the combination of neutrophilic leukocytosis + monocytosis + recurrent pattern in a 29-year-old female, the following should be considered:
High Priority
- Chronic/recurrent bacterial infection - TB, dental abscess, urinary tract infection, pelvic inflammatory disease
- Occult infection - bacterial endocarditis, osteomyelitis, deep-seated abscess
Moderate Priority
- Autoimmune/inflammatory disease - SLE, vasculitis, IBD (especially relevant in a young woman)
- Parasitic infection - malaria (relevant in Pakistan/South Asia)
- Rickettsiosis - given the geographic context
Lower Priority (but important to exclude)
- Myeloproliferative neoplasm - CML, chronic myelomonocytic leukemia (CMML); however, the WBC is only mildly elevated and the differential does not show blast forms or basophilia
The Lab's Suggestion: CRP
The lab recommends C-Reactive Protein (CRP) - this is appropriate. CRP is an acute-phase reactant that will:
- Quantify the degree of systemic inflammation
- Help distinguish acute bacterial infection (CRP typically >100 mg/L) from chronic low-grade inflammation
- Monitor response to treatment
Additional Workup to Consider (for the treating physician)
- CRP / ESR - as suggested
- Blood culture - if febrile
- Urine culture + urinalysis - UTI/pyelonephritis very common in young women
- Chest X-ray + Mantoux / Quantiferon-TB - to rule out TB (important in this region)
- ANA, anti-dsDNA - if autoimmune etiology suspected
- Peripheral blood smear review for atypical cells (already done - no blasts noted)
- Malaria RDT/film if travel history or fever episodes
Summary
Ms. Hina's CBC shows mild neutrophilic leukocytosis with monocytosis and a recurrent pattern over at least 3 years. Red cell parameters and platelets are entirely normal. The peripheral smear shows no abnormal morphology. The pattern is most consistent with a subacute or chronic infectious or inflammatory process rather than a simple acute illness. The suggested CRP is a good next step, and clinical correlation - particularly for TB, autoimmune disease, or a recurrent/occult infection - is warranted in a 29-year-old Pakistani female presenting to a clinic.
Based on Robbins & Kumar Pathologic Basis of Disease (Table 13.2, 13.3) and Robbins Basic Pathology (Table 10.6)
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