Does Delaying Blood Draw for Cortisol Testing Affect Results?
Blood draw time Hello doctor, I have a cortisol blood test scheduled. The lab order states to draw blood at 4 PM and 8 AM, but due to long wait times at the hospital, my actual blood draw was close to 5 PM and almost 9 AM. Will this delay of nearly an hour affect the accuracy of ...
Dr. Lin Jianliang Reply:
There may be some impact, but it will not be significant. The test values can still be referenced.[Read More] Does Delaying Blood Draw for Cortisol Testing Affect Results?
Understanding Elevated Cortisol Levels: Symptoms, Causes, and Next Steps
Hypercortisolism Hello Doctor, I have been experiencing chest tightness and discomfort for the past few months, and it has been over two months now with daily discomfort. Occasionally, I also feel nauseous, and my energy and spirits are not very good. After undergoing several car...
Dr. Wu Hongjie Reply:
Cortisol levels typically range from 4.3 to 22.5 µg/dL; it is recommended to follow up with an endocrinologist since the adrenal glands are part of the endocrine system. Wishing you good health.[Read More] Understanding Elevated Cortisol Levels: Symptoms, Causes, and Next Steps
Does Hydration Affect Serum Creatinine Levels in Chronic Kidney Disease?
Factors affecting elevated creatinine levels? I have chronic kidney disease and have been undergoing regular follow-ups. However, the results of my kidney function tests have shown significant fluctuations this year (ranging from the 50s to the 30s). Therefore, I would like to as...
Dr. Wu Jiyu Reply:
Based on the data you provided, it falls within the range of stage 3 chronic kidney disease. Sometimes, we monitor kidney function by looking at a broader range and trends over several years, rather than just comparing the most recent outpatient visit with the previous one. In yo...[Read More] Does Hydration Affect Serum Creatinine Levels in Chronic Kidney Disease?
Daily High Fever and Weight Loss in a 70-Year-Old with Lupus
Persistent high fever every morning accompanied by weight loss? Hello, Doctor. Thank you for taking the time to read this amidst your busy schedule. My father, who is 70 years old, has been diagnosed with systemic lupus erythematosus and chronic obstructive pulmonary disease. He ...
Dr. Gao Jiankai Reply:
Hello, thank you for your inquiry. Here are my responses: 1. You can return for a follow-up appointment anytime you feel unwell, especially if you have a fever, without worrying about the physician's opinion. 2. If you have had a persistent fever for over a month, that is...[Read More] Daily High Fever and Weight Loss in a 70-Year-Old with Lupus
Understanding Hormonal Imbalances: Hair Loss and Related Symptoms
Hair-related Hello, doctor. I would like to ask you a question. Recently, I noticed that my hair seems to be thinning when I went for a haircut. None of the male relatives in my family are bald. Later, I visited a dermatology clinic, and the doctor mentioned that I might have som...
Dr. Hong Yuanbin Reply:
Hello, hair loss can indeed be caused by many factors including stress, lifestyle, and hormonal imbalances. It is advisable to seek medical attention for further diagnosis. If you are concerned about hair loss, it is typically handled by a dermatologist. However, if you are worri...[Read More] Understanding Hormonal Imbalances: Hair Loss and Related Symptoms
Understanding Proteinuria and Its Implications in Chronic Kidney Disease
Proteinuria Kidney 1. I do not have diabetes, and after undergoing a Urine Albumin-to-Creatinine Ratio (UACR) test, the doctor said the results were normal. However, shouldn't a Urine Protein-to-Creatinine Ratio (UPCR) test be performed to confirm the presence of proteinuria...
Dr. Huang Yaoxuan Reply:
Hello Mr. AC: 1. You can consult the physician who arranged your UACR test to discuss what I believe is crucial: "how to take care of your kidneys." Arranging tests (such as blood tests for creatinine and urine tests for UACR or UPCR) is just one method. Don't fo...[Read More] Understanding Proteinuria and Its Implications in Chronic Kidney Disease
Understanding the Disappearance of Thalassemia in Recent Blood Tests
I had thalassemia in middle school, but recent tests did not show any signs of it? Hello Doctor: I recently underwent a physical examination for military service, and I have some questions. In the past, I was diagnosed with thalassemia minor, but my recent tests did not indicate ...
Dr. Hong Yuanbin Reply:
Hello, 1. Mediterranean anemia requires further genetic testing to determine. The data you have is from a basic blood test, which can only indicate whether there is currently anemia. Based on this value, we can only say that there is no anemia at this moment; it does not rule o...[Read More] Understanding the Disappearance of Thalassemia in Recent Blood Tests
Understanding High Adrenaline Levels: Causes and Health Implications
Elevated adrenaline levels? Hello doctor, in recent months I have experienced chest tightness, chest pain, and shortness of breath, which led me to consult a cardiologist. I have also fainted a couple of times. The cardiac examination report indicated tachycardia and very mild ar...
Dr. Lin Jianliang Reply:
It is recommended to consult an endocrinologist. Elevated adrenaline levels can potentially affect blood pressure and heart rate. However, there are other factors that can also influence these levels. Certain contraceptives may impact adrenaline levels, but there are also other f...[Read More] Understanding High Adrenaline Levels: Causes and Health Implications
Understanding Unexplained Foot Size Differences in Women
Women have larger feet than men? Typically, women wear shoe sizes ranging from 24 to 39. My foot size is 27.5, and particularly, my right foot is significantly more swollen than my left, making it impossible to fit into such small shoes. Additionally, my feet are larger than thos...
Dr. Chen Jianyu Reply:
The issue is complex; it is recommended to visit a hospital for a more detailed consultation and examination.[Read More] Understanding Unexplained Foot Size Differences in Women
Understanding Persistent Foot Swelling: Causes and Solutions
Dorsal foot edema issue? Hello, doctor. I have been experiencing swelling on the dorsum of my left foot for the past five to six weeks. Occasionally, the swelling decreases a bit, but then it suddenly becomes swollen again. When the swelling is more pronounced, it is accompanied ...
Dr. Chen Jianyu Reply:
Your issue is quite complex and requires a detailed consultation. It is recommended that you visit a hospital for further evaluation.[Read More] Understanding Persistent Foot Swelling: Causes and Solutions
Understanding Tongue Injuries and Cholesterol Management: When to Seek Help
Question for the doctor? Hello, doctor. This afternoon, while biting into a malt cookie, I accidentally scraped my tongue against something stuck to my teeth. Although there was no bleeding, I noticed a small red spot under my tongue. Could this be due to a microvascular bleed? D...
Dr. Hong Yuanbin Reply:
Hello, 1. A small cut on the tongue from accidentally biting it usually heals on its own, unless it worsens; otherwise, there is no need for medical attention. 2. High cholesterol is indeed caused by multiple factors, including diet, exercise, genetics, body composition, and ...[Read More] Understanding Tongue Injuries and Cholesterol Management: When to Seek Help
Understanding Temperature Fluctuations: When to Seek Medical Advice
Temperature issues Hello Doctor, I previously had a family member infected with mycoplasma, and I developed symptoms of a scratchy throat and a mild fever of 37 degrees Celsius in the evening. I sought medical attention and was prescribed DayShu for three days. I was scheduled fo...
Dr. Hong Yuanbin Reply:
Hello, according to the chart you provided, the highest temperature recorded is 37.7°C, with most readings below 37°C. Body temperature can often fluctuate based on surrounding temperature or physical activity. Overall, such variations in temperature should not be considered a fe...[Read More] Understanding Temperature Fluctuations: When to Seek Medical Advice
Is It Safe to Take Low-Dose Isotretinoin for Acne Management?
Is it safe to take a low dose? The dermatologist prescribed oral low-dose Isotretinoin (A acid) at 10 mg once a week. I can control my acne with just one capsule, and I can tolerate the side effects. I am currently continuing this regimen. However, I have type 2 diabetes, and my ...
Dr. Li Jian Reply:
Hello, dermatology is not my specialty. I recommend consulting your primary physician or a dermatologist.[Read More] Is It Safe to Take Low-Dose Isotretinoin for Acne Management?
Understanding Bruises and Pain: When to See a Doctor
Please ask your question, doctor? Hello doctor, after taking a shower and drying off, I noticed some pain in my lower back. Upon inspection, I found some yellow-green discoloration that was a bit painful to touch, and there were also some purple spots that looked like small dots....
Dr. Hong Yuanbin Reply:
Based on your description and the photos, it is most likely a simple bruise, which may have occurred due to an accidental bump or strain. Typically, the body will heal itself over time, so there is no need for concern. As for the purpura you mentioned, it is a type of autoimmune ...[Read More] Understanding Bruises and Pain: When to See a Doctor
Understanding Weight Loss Challenges: Insights on Mild Obesity and Health Metrics
Obesity issues Hello doctor, I am 160 cm tall and weigh 73-74 kg, which indicates mild obesity according to my BMI. I have been controlling my diet, but my weight hasn't changed much. I drink more than 2000 cc of water daily and have bowel movements 1-2 times a day. I had bl...
Dr. Li Jian Reply:
Obesity is related to both genetic factors and environmental influences. In addition to thyroid hormones, other hormonal abnormalities may also contribute to obesity. Currently, one of the weight loss methods highly endorsed by mainstream medicine is intermittent fasting. For mor...[Read More] Understanding Weight Loss Challenges: Insights on Mild Obesity and Health Metrics
Understanding Dry Tongue: Possible Links to Stomach Ulcers and Diabetes
Regarding dry tongue? Hello Doctor, let me describe my condition: Two and a half years ago, during a newborn health check, my fasting blood glucose was 75 mg/dL, with no diabetes, and everything else was normal. About one to two years ago, I experienced two episodes of dry mouth ...
Dr. Hong Yuanbin Reply:
Hello, regarding your question about dry mouth, it is likely not caused by other underlying diseases. Typically, a healthy young person should consume around 2000-3000 cc of fluids (including water) per day, especially in hot weather when fluid loss is rapid. It is advisable to m...[Read More] Understanding Dry Tongue: Possible Links to Stomach Ulcers and Diabetes
Understanding Ear Lobe Pimples: Blood Flow, Healing, and Treatment
Please ask your question, doctor? Hello Doctor, I have a deep pimple on my left earlobe. I previously visited a dermatologist who prescribed some medication. Today, I felt it had matured, so I squeezed it out, and there was a bit of blood along with some yellowish-white substance...
Dr. Hong Yuanbin Reply:
Hello, what we refer to as acne is actually folliculitis, which consists of secretions from the hair follicles. If you squeeze it forcefully, it can cause some small blood vessels to rupture, resulting in a little bleeding. However, since these are just tiny capillaries, the coag...[Read More] Understanding Ear Lobe Pimples: Blood Flow, Healing, and Treatment
Understanding HIV Testing: Expert Insights on Results and Next Steps
Consultation on HIV Testing Methods Hello Dr. Hong, thank you once again for your response. I underwent the Alere HIV Combo test at a public hospital's anonymous testing center 39 days after the incident, which indicated that the test's window period is one month. The r...
Dr. Hong Yuanbin Reply:
Hello, first of all, yes, the possibility of infection should be ruled out. Secondly, if there are no specific symptoms, there is indeed no need to perform further RT-PCR or other HIV tests. Thank you for your inquiry.[Read More] Understanding HIV Testing: Expert Insights on Results and Next Steps
Understanding HIV Testing: Concerns About Variants and Accuracy
HIV Testing Consultation Hello Dr. Hong, I apologize for the interruption. Here is my story: On August 2, 2019, after a gathering with friends, we went to a special location where the female service providers were from Southeast Asia or mainland China. That day, I engaged in unpr...
Dr. Hong Yuanbin Reply:
Hello, in response to your inquiries, here are a few points: 1. The combo test kits you are using are universally applicable, so there should be no type-related issues even in Southeast Asia; the results should be consistent. 2. Based on your description, you have not engaged...[Read More] Understanding HIV Testing: Concerns About Variants and Accuracy
Understanding Abnormal Results in Your Health Check Report
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 res...
Dr. Hong Yuanbin Reply:
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 you...[Read More] Understanding Abnormal Results in Your Health Check Report