CBC trend

Interpretation

1. Persistently raised white blood cells, now increasing

• It can occur with an active infection, inflammation, physical stress, smoking, certain medicines such as steroids, and less commonly blood or bone-marrow disorders.
• The absolute neutrophil count is also elevated, approximately 11,500, 7,100, and 10,400/cumm across the three tests. This pattern can fit infection or inflammation, but a CBC alone cannot identify the cause.
• The WBC count briefly improved on 17 October but rose substantially again on 23 October. That requires clinical assessment rather than simply waiting for it to settle.

2. Mild anemia with persistent small, pale red cells

• MCV: small red cells, called microcytosis
• MCH and MCHC: reduced hemoglobin per cell, called hypochromia

1. Iron deficiency, including from dietary deficiency, poor absorption, or blood loss.
2. Thalassemia trait, especially because the RBC count is relatively high on two reports despite low MCV.
3. Both conditions together are also possible.
4. Less commonly, anemia related to chronic inflammation or other causes.

3. Platelets are reassuring

What to do next

• Repeat CBC with differential at a reliable laboratory
• Peripheral blood smear/manual differential
• CRP and/or ESR
• Serum ferritin, serum iron, TIBC/transferrin saturation
• Reticulocyte count
• Hemoglobin electrophoresis/HPLC, particularly if iron studies are not clearly low or there is family history of thalassemia
• Clinical assessment for infection: fever, cough, urine symptoms, dental infection, abdominal symptoms, skin infection, etc.
• If iron deficiency is confirmed: assessment for occult gastrointestinal bleeding as clinically appropriate

Seek urgent care today or emergency assessment if any of these are present

• Fever or chills, worsening illness
• Shortness of breath, chest pain, fainting, confusion
• Severe weakness, persistent vomiting, severe abdominal pain
• Blood in stool, black stools, vomiting blood, blood in urine
• Unexplained bruising, drenching night sweats, unintentional weight loss, or enlarged lymph nodes

1. The WBC has not steadily improved
   It was 14,800 on 10 Oct, improved to 13,200 on 17 Oct, then increased to 17,400 on 23 Oct. This does not prove a serious problem, but it means the patient should be re-examined, particularly if symptoms are persisting or worsening.
2. Acute bronchitis is usually viral, but WBC 17,400 is relatively significant
   Leukocytosis can occur in bronchitis, but a higher or rising count makes the doctor consider whether there is bacterial infection, pneumonia, a complication, or another infection elsewhere. A clinical examination, oxygen saturation, temperature, respiratory rate, and chest findings are more informative than CBC alone. The CDC outpatient guidance advises focusing on ruling out pneumonia when an adult with acute cough has abnormal vital signs or abnormal focal chest examination findings.

Practical next step

Sensible plan

• Follow the treating physician’s treatment plan.
• If he is now fever-free, breathing comfortably, and improving each day, arrange a repeat CBC with differential in about 5-7 days, or as his doctor advises.
• The repeat test should ideally show the WBC trending down toward normal.
• If he took steroids such as prednisolone/dexamethasone, tell the doctor: these can raise the WBC count, mainly neutrophils.
• If the WBC stays high, rises further, or symptoms return, the doctor should re-examine him and consider a peripheral smear, CRP, and chest X-ray if indicated.

Seek medical review urgently if any return or worsening occurs

• Fever returns or persists
• New/worsening shortness of breath, fast breathing, chest pain, confusion, severe weakness
• Oxygen saturation below 94% if measured with a pulse oximeter
• Cough with blood, or inability to eat/drink adequately

• Take it exactly as prescribed, at the prescribed timing and duration.
• Do not stop early merely because he feels better, unless the prescribing doctor tells him to stop or there is a significant adverse reaction.
• It can generally be taken with or without food, but taking it after food may reduce stomach upset.
• Common effects include nausea, loose stools/diarrhea, abdominal discomfort, and rash.
• Contact the doctor promptly for rash, facial/lip swelling, breathing difficulty, severe or persistent watery diarrhea, or worsening fever/cough.
• Tell the doctor if he has a history of serious allergy to penicillin, cephalosporins, carbapenems, or other beta-lactam antibiotics, and if he has kidney disease.