Missed Fasting Before Health Check: What It Means for Your Health

Q: Missed Fasting Before Health Check: What It Means for Your Health

Hello： Here are answers to your questions： 1. <br>If you undergo a health check after breakfast, your cholesterol levels may be elevated. <br>2. <br>Individuals with anemia may experience dizziness, and their blood pressure may be low, with a slightly elevated heart rate. <br>3.

Forgot to fast before the health check-up?

Hello Doctor, during my last health check-up, I forgot to fast and had breakfast before going to the hospital for the tests.
The results showed that my fasting blood glucose was "below" the standard range and my total cholesterol was "above" the standard range.
Although the deviations from the standard values are not significant, should I be concerned? I often experience dizziness, and several measurements have indicated low blood pressure and elevated heart rate (approximately systolic 80-100, diastolic 50-70, heart rate 80-100), with my heart rate sometimes exceeding my systolic blood pressure.
I have also experienced episodes of chest tightness, feeling like a cramp, and sudden sharp pains that last only a second or two.
I am somewhat underweight (160 cm / 44 kg) and have mild anemia (hemoglobin levels of 11.2 and 10.6 on different occasions).
There is a family history of diabetes and hypertension.
I would like to ask the doctor what might be causing my discomfort, how I should adjust my daily habits, and if further testing is necessary.
Which specialty should I consult for these examinations? Thank you.

Mao Ling, 20~29 year old female. Ask Date: 2020/07/08

Dr. Wu Zongying reply Family Medicine

Hello: Here are answers to your questions: 1.
If you undergo a health check after breakfast, your cholesterol levels may be elevated.
2.
Individuals with anemia may experience dizziness, and their blood pressure may be low, with a slightly elevated heart rate.
3.
Your hemoglobin (Hb) level is slightly low, and further testing should be conducted to determine if it is due to iron deficiency anemia.
If so, nutritional supplementation should be considered, and you should limit the intake of carbohydrate-rich foods and beverages such as bread and cookies.
4.
It is recommended that you engage in regular exercise to improve cardiovascular and pulmonary function, which can help reduce instances of low blood pressure and dizziness.
Additionally, your meals should primarily consist of balanced main meals.
Wishing you good health.

Reply Date: 2020/07/08

More Info

When you miss fasting before a health check, it can lead to altered test results that may not accurately reflect your true health status. Fasting is often required for tests such as blood glucose and lipid panels because food intake can significantly influence these measurements. In your case, you mentioned that your fasting blood glucose was below the standard range, and your total cholesterol was above it. While these deviations may seem minor, they can provide important insights into your overall health.

Low fasting blood glucose can indicate several conditions, including hypoglycemia, which can lead to symptoms like dizziness, weakness, and confusion. Given your history of frequent dizziness and low blood pressure, it’s essential to investigate whether your body is effectively managing blood sugar levels. On the other hand, elevated cholesterol levels can increase your risk of cardiovascular diseases, especially if combined with other risk factors such as family history, obesity, and sedentary lifestyle.

Your symptoms of dizziness, low blood pressure, and occasional chest discomfort warrant further investigation. The fact that your heart rate sometimes exceeds your systolic blood pressure is concerning and could indicate an underlying issue with your cardiovascular system. Given your family history of diabetes and hypertension, it’s crucial to monitor these conditions closely.

In terms of daily habits, consider the following adjustments:
1. Diet: Focus on a balanced diet rich in whole grains, lean proteins, healthy fats, and plenty of fruits and vegetables. Avoid excessive sugar and refined carbohydrates, which can lead to spikes and drops in blood sugar levels.

2. Hydration: Ensure you are adequately hydrated, as dehydration can contribute to low blood pressure and dizziness.

3. Regular Monitoring: Keep track of your blood pressure and heart rate regularly. If you notice significant fluctuations or persistent symptoms, seek medical advice promptly.

4. Exercise: Engage in regular physical activity, which can help improve cardiovascular health and stabilize blood pressure. However, consult with a healthcare provider before starting any new exercise regimen, especially given your symptoms.

5. Stress Management: Practice stress-reducing techniques such as mindfulness, yoga, or meditation, as stress can exacerbate heart rate and blood pressure issues.

Given your symptoms and medical history, it would be advisable to consult a healthcare professional, specifically a cardiologist or an endocrinologist. A cardiologist can evaluate your heart health, while an endocrinologist can assess your blood sugar regulation and any potential metabolic issues. They may recommend further tests, such as an echocardiogram, stress test, or continuous glucose monitoring, to provide a clearer picture of your health.

In summary, missing fasting before a health check can lead to misleading results, and your symptoms suggest that further evaluation is necessary. Adjusting your daily habits and seeking specialized medical advice will be crucial in addressing your health concerns and ensuring that you maintain optimal health moving forward.

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