Abnormal Results in Your Health Check Report - Internal Medicine

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Health check report issues


Hello Doctor: I recently received a report from a previous health check-up, but I am confused about several items marked in red on the report.
I would like to ask the doctor what could cause these abnormal values? After learning about these abnormal results, how should I proceed?
1.
pCO2 (carbon dioxide partial pressure) → 46.9 mmHg
2.
pO2 (oxygen partial pressure) → 30.1 mmHg
3.
Lymphocyte → 51.2%
4.
Monocyte → 10.4%
5.
Neutrophil → 37.1%
6.
K (potassium) → 3.3 mEq/L
7.
HCO3 (bicarbonate) → 26.4 mEq/L
Thank you!

Chong Ting, 20~29 year old female. Ask Date: 2020/05/14

Dr. Hong Yuanbin reply Internal Medicine


Hello, regarding the following data: (1) pCO2 (partial pressure of carbon dioxide) → 46.9 mmHg, (2) pO2 (partial pressure of oxygen) → 30.1 mmHg, (3) HCO3 (bicarbonate) → 26.4.
The normal reference ranges for these values are determined using arterial blood; however, based on your data, it seems you may have used venous blood for the analysis.
If we consider the normal values for venous blood, your three measurements are still within the normal physiological range.
Nevertheless, to confirm this, arterial blood testing would be necessary.
Regarding (4) Lymphocyte → 51.2, (5) Monocyte → 10.4, and (6) Neutrophil → 37.1, your neutrophil count is decreased while your lymphocyte count is elevated.
This could indicate several possibilities, with the most common being a viral infection, such as a cold.
In some cases, it may also suggest underlying hematological issues, so I recommend consulting a hematologist.
As for (7) K (potassium) → 3.3, this is slightly below the normal value of 3.5.
This may be due to reduced dietary intake or recent diarrhea, but typically, this level does not have significant clinical implications.
Thank you for your inquiry.

Reply Date: 2020/05/14

More Info


Understanding abnormal results in health check reports can be quite challenging, especially when faced with values that deviate from the normal range. Let's break down the specific abnormal results you've mentioned and discuss their potential implications, as well as the next steps you should consider.

1. pCO2 (Carbon Dioxide Partial Pressure) - 46.9 mmHg: This value is elevated, as normal pCO2 levels typically range from 35 to 45 mmHg. An increase in pCO2 can indicate respiratory acidosis, which may occur due to conditions that impair lung function, such as chronic obstructive pulmonary disease (COPD) or severe asthma. It could also suggest hypoventilation, where the body is not expelling carbon dioxide effectively.

2. pO2 (Oxygen Partial Pressure) - 30.1 mmHg: This value is significantly low, as normal pO2 levels are usually between 75 and 100 mmHg. A low pO2 indicates hypoxemia, which means that there is insufficient oxygen in the blood. This can be caused by respiratory diseases, heart conditions, or issues with oxygen transport in the blood.

3. Lymphocyte - 51.2%: This percentage is elevated, as normal lymphocyte levels typically range from 20% to 40% of total white blood cells. An increase in lymphocytes can indicate a viral infection, chronic inflammatory conditions, or certain types of leukemia.

4. Monocyte - 10.4%: This value is also elevated, with normal levels ranging from 2% to 8%. Elevated monocytes can be a response to chronic inflammation, infection, or stress on the body.

5. Neutrophil - 37.1%: This percentage is low, as normal neutrophil levels are generally between 40% and 70%. Low neutrophil counts can indicate a risk of infection, bone marrow issues, or the effects of certain medications.

6. Potassium (K) - 3.3 mEq/L: This value is low, as normal potassium levels range from 3.5 to 5.0 mEq/L. Hypokalemia (low potassium) can lead to muscle weakness, cramps, and cardiac arrhythmias. It can be caused by inadequate dietary intake, excessive loss through urine or gastrointestinal tract, or certain medications.

7. HCO3 (Bicarbonate) - 26.4 mEq/L: This value is within the normal range (22-28 mEq/L), indicating that your body's bicarbonate levels are stable, which is important for maintaining acid-base balance.


Next Steps:
Given these abnormal results, it is crucial to take the following steps:
- Consult a Healthcare Provider: Schedule an appointment with your primary care physician or a specialist, such as a pulmonologist or hematologist, depending on the abnormalities. They can provide a comprehensive evaluation based on your symptoms, medical history, and these lab results.

- Further Testing: Your doctor may recommend additional tests to determine the underlying causes of these abnormalities. This could include imaging studies (like a chest X-ray or CT scan), pulmonary function tests, or more specific blood tests.

- Monitor Symptoms: Pay attention to any symptoms you may be experiencing, such as shortness of breath, fatigue, or unusual bruising. Documenting these can help your healthcare provider make a more accurate diagnosis.

- Lifestyle Modifications: Depending on the findings, your doctor may suggest dietary changes, such as increasing potassium intake through foods like bananas, oranges, and spinach, or managing stress and hydration levels.

- Follow-Up: Regular follow-up appointments may be necessary to monitor your condition and adjust any treatments as needed.

In summary, while abnormal lab results can be concerning, they are often a starting point for further investigation rather than a definitive diagnosis. Engaging with your healthcare provider to interpret these results in the context of your overall health is essential for appropriate management and care.

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