Urine test, Internal Medicine FAQ - Page 8

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Understanding Kidney Function and Glomerular Filtration Rate Issues

Glomerular and renal function issues? Hello doctor, I would like to ask a question. I am 35 years old, and my glomerular filtration rate (GFR) has not exceeded 90 for the past seven years. I do not have hypertension or diabetes. In my most recent urine test, the protein level was...


Dr. Wu Jiyu Reply:
Based on the data you provided, the following is the calculation of the health examination results: Year Age Serum Creatinine Glomerular Filtration Rate (GFR) 2010 29 1.2 mg/dL 72 mL/min 2011 30 1.3 mg/dL 65 mL/min 2012 31 ...

[Read More] Understanding Kidney Function and Glomerular Filtration Rate Issues


Understanding Proteinuria: Key Questions and Considerations

Proteinuria - Supplementary Questions Therefore, when urine protein is greater than 0.15 g/d, several issues need to be considered: 1. Is the urine protein primarily albumin? 2. Was the urine sample collected during a time when the daily urine volume was close to 1-1.5 liters? Ot...


Dr. Wu Hongjie Reply:
Hello: Albumin is just one component of proteinuria. In other words, if the urine protein level is 0.15 g/L, then the absolute amount of albumin in the urine is less than 0.15 g/d (at most, all protein could be albumin). Testing for microalbuminuria is more ideal, especially for ...

[Read More] Understanding Proteinuria: Key Questions and Considerations


Understanding Proteinuria: What Does a 0.15g/l Urine Test Result Mean?

Proteinuria test Hello, staff of Taiwan e-Hospital. I am resending this content due to the need for additional test values from October 2, 2016. I hope this will not be deleted for being a repeated inquiry. Thank you for your hard work. Dear Dr. Wu, during a health check last y...


Dr. Wu Hongjie Reply:
Dear Sir/Madam, Proteinuria is one of the indicators of renal function deterioration leading to kidney disease. However, the actual measurement of proteinuria requires a 24-hour urine collection, which can be inconvenient. Therefore, an estimation method has been developed, usin...

[Read More] Understanding Proteinuria: What Does a 0.15g/l Urine Test Result Mean?


Understanding Acute Kidney Failure Recovery: Key Insights and Timeline

Recovery from renal failure Hello Dr. Wu, in May of this year, I underwent blood tests due to feeling unwell. The first test results showed BUN: in the 120s and Cr: around 5.5 (with no proteinuria present). Two days later, I had another blood test, and the results were BUN: in th...


Dr. Wu Jiyu Reply:
Hello: Based on the information you provided, if kidney function was normal during the previous year's health check and has suddenly deteriorated this year, the clinical course should primarily be considered as acute kidney injury. However, acute kidney injury can lead to va...

[Read More] Understanding Acute Kidney Failure Recovery: Key Insights and Timeline


Understanding Frequent Urination: Causes, Symptoms, and Treatment Options

Frequent urination issues? Hello, Doctor. About a month ago, I was diagnosed with gastritis at a clinic and took medication for two weeks without improvement. I then went to Tzu Chi Hospital for an endoscopy, where the physician confirmed that I only had inflammation and no signi...


Dr. Hong Yuanbin Reply:
Hello, based on your description, it seems that you don't have much trouble during the day, although you do wake up several times at night to urinate, and each time the volume is quite large. The most common reason for this could be that you are drinking too much water in th...

[Read More] Understanding Frequent Urination: Causes, Symptoms, and Treatment Options


Do You Need Annual Kidney Check-Ups After Past Urinary Issues?

Kidney problems Is it necessary for a physician who had a history of urethritis over a decade ago and has taken a large amount of traditional Chinese medicine, but has had normal health values twice in recent years, to undergo regular annual check-ups? The physician has a congeni...


Dr. Wu Jiyu Reply:
Hello, based on the information you provided, not all traditional Chinese medicines cause renal dysfunction. Although you have taken a large amount of herbal medicine, it does not necessarily mean that your kidney function is impaired. However, early renal dysfunction may not pre...

[Read More] Do You Need Annual Kidney Check-Ups After Past Urinary Issues?


Could Your Diet and Dehydration Be Causing Kidney Pain?

Drinking insufficient water and experiencing lower back pain after consuming certain foods may indicate a potential issue with the kidneys? Hello Doctor: I have noticed that whenever I eat certain specific foods (like Angelica duck noodles or braised dishes), I experience sorenes...


Dr. Wu Hongjie Reply:
Dear Sir/Madam, Regarding your symptoms, there are several possible scenarios: 1. The pain in your elbows and knees may be related to gout. I recommend visiting a hospital for a blood test to check your uric acid levels. 2. A high-sodium diet can lead to increased fluid intake...

[Read More] Could Your Diet and Dehydration Be Causing Kidney Pain?


Understanding Kidney Pain: Common Causes and Concerns

Kidney pain Doctor Wang, why does my mother often experience kidney pain?


Dr. Wang Weijie Reply:
Hello, the kidneys are located in the retroperitoneal space, and approximately 97% of the causes of pain in most individuals are due to mechanical factors (including muscle strains, sprains, and spinal issues). Among these, over 70% are attributed to lumbar strains, while 4% are ...

[Read More] Understanding Kidney Pain: Common Causes and Concerns


Understanding Upper Right Abdominal Pain: Causes and Solutions

Regarding sharp pain in the right upper abdomen? Hello, Dr. Hsiao. I have been experiencing a sudden feeling of hunger shortly after meals, which feels somewhat like an empty stomach sensation without the typical stomach growling. If I eat too quickly, I might even feel hungry ha...


Dr. Xiao Yongxun Reply:
Dear Mr. Shi: 1. Regarding your upper right abdominal pain, I believe it may be what is commonly referred to as side stitch, as mentioned in my response on June 27, 2016. Therefore, I recommend that you consult a coach to learn proper breathing techniques while running to avoid ...

[Read More] Understanding Upper Right Abdominal Pain: Causes and Solutions


Understanding Left Kidney Pain: When to Seek Further Testing

Percussion of the left kidney causes pain? Hello Doctor: When I tap on the area of my left kidney, it hurts. This has been going on for a long time, so this year I went to the hospital for a kidney ultrasound, blood tests, and urinalysis, but the doctor said everything was fine. ...


Dr. Wu Hongjie Reply:
Dear Sender, The issue of left-sided lower back pain has many potential causes. If the pain radiates down the back to the thighs and calves, it may indicate nerve pain or compression. If it is related to kidney problems, such as stones or infections, it typically remains localiz...

[Read More] Understanding Left Kidney Pain: When to Seek Further Testing


Understanding Glomerular Filtration Rate and Proteinuria: A Patient's Concerns

Hello, Dr. Wu. Could you please explain the relationship between glomerular filtration rate and proteinuria? Hello Dr. Wu, in my last hospital check-up report, my glomerular filtration rate (GFR) was highlighted in red at 83 mL/min/1.73 m², with a reference value of greater than ...


Dr. Wu Jiyu Reply:
Hello, the glomerular filtration rate (GFR) used by hospitals is estimated based on formulas derived from past research statistics on patients with chronic kidney disease. Factors such as age, weight, body composition, gender, and ethnicity can all influence the calculation of th...

[Read More] Understanding Glomerular Filtration Rate and Proteinuria: A Patient's Concerns


Understanding the Causes of Elevated Creatinine Levels in Lupus Patients

Causes of elevated creatinine levels? I have systemic lupus erythematosus, which was diagnosed in 2009. At that time, my serum creatinine level was 4.4. After receiving steroid treatment, it decreased to 2.5. I have since been under the care of rheumatology and nephrology. Howeve...


Dr. Lin Peifeng Reply:
The provided information is limited. Lupus nephritis can cause six types of pathological changes in the kidneys, some of which are acute changes. In such cases, the use of stronger immunosuppressants and corticosteroids may improve some kidney function. However, if the changes ar...

[Read More] Understanding the Causes of Elevated Creatinine Levels in Lupus Patients


Understanding White Particles in Urine: Is It Normal?

Urine with suspended particles? Hello Doctor, I am 155 cm tall and currently weigh 57 kg. During my recent urine tests, I noticed that my urine has a whitish sediment. Is this normal? Also, is my uric acid level high? Here are the results from my most recent urine test: Blood Ure...


Dr. Wu Jiyu Reply:
Hello, based on the information you provided, most of the results appear to be normal. However, some aspects of the urinalysis (such as the microscopic examination) were not listed, making it difficult to assess. If you continue to notice any suspended particles, you should consu...

[Read More] Understanding White Particles in Urine: Is It Normal?


Understanding Urine Ketones: What Does +/- Mean for Your Health?

Urine ketones +/- means that ketones are either present or absent in the urine. The "+" indicates the presence of ketones, while the "-" indicates their absence? This year, as a junior, I just received my health check results and found that my urine ketones we...


Dr. Wu Jiyu Reply:
Hello, when the human body is in a prolonged fasting state, it produces ketone bodies, which can be excreted in the urine and may show a positive result. If the ketone bodies are present in trace amounts, the urine test may indicate a weak positive (+/-), meaning that while they ...

[Read More] Understanding Urine Ketones: What Does +/- Mean for Your Health?


Managing Recurrent Urinary Tract Infections in Elderly Patients: A Guide

Urinary tract infection (UTI) Dear Dr. Wu, my grandmother is 92 years old and frequently suffers from urinary tract infections. She was previously hospitalized due to an infection that caused a fever, and the bacteria entered her bloodstream (bacteremia). After being hospitalized...


Dr. Wu Jiyu Reply:
Based on your inquiry, theoretically, the bacteremia caused by the urinary tract infection should have been resolved; otherwise, your grandmother would continue to have a fever. Regarding the urine test results from the second hospital indicating an infection index of 26-50, ther...

[Read More] Managing Recurrent Urinary Tract Infections in Elderly Patients: A Guide


Understanding Kidney Function: GFR vs. Creatinine in Health Concerns

Glomerular filtration rate and kidney disease issues? Hello Dr. Wu: I am 180 cm tall and weigh about 71 kg. Recently, for the past month, I have noticed persistent bubbles in my urine and have experienced increased urinary frequency (especially 2-3 hours after consuming sugary dr...


Dr. Wu Jiyu Reply:
Based on the data you provided, the physician's response is correct because the current formula for estimating glomerular filtration rate (GFR) is derived from international sources, while domestic scholars have been researching a formula specific to our population. In summa...

[Read More] Understanding Kidney Function: GFR vs. Creatinine in Health Concerns


Understanding BUN and Creatinine Levels for Kidney Function Assessment

Blood tests for kidney function indicators? If both BUN and creatinine levels in the blood test are within the normal range, does it indicate that kidney function is normal? Since the calculation of the glomerular filtration rate (GFR) is in the first stage, does this have any re...


Dr. Wu Jiyu Reply:
To confirm normal kidney function, three tests must be normal: 1. Blood tests (BUN and Creatinine) 2. Urine tests (no hematuria, no proteinuria) 3. Ultrasound examination (no stones, no hydronephrosis...) Thank you for your inquiry, and the Nephrology Department of Changhua Hospi...

[Read More] Understanding BUN and Creatinine Levels for Kidney Function Assessment


Understanding Kidney Function: GFR vs. Creatinine in Chronic Kidney Disease

Glomerular filtration rate and kidney disease issues? Hello Dr. Wu, I am 180 cm tall and weigh around 71 kg. Recently, for the past month, I have noticed persistent bubbles in my urine, and I feel that I have increased urinary frequency (especially 2-3 hours after consuming suga...


Dr. Wu Jiyu Reply:
Based on the data you provided, the physician's response is correct because the current formula for estimating glomerular filtration rate (GFR) is derived from international sources, while domestic scholars are researching a formula specific to our population. In summary, re...

[Read More] Understanding Kidney Function: GFR vs. Creatinine in Chronic Kidney Disease


Understanding Diabetes: Symptoms, Testing, and Risk Factors Explained

Diabetes concerns? Hello Dr. Lee: In the past month, I have noticed persistent bubbles in my urine and have experienced increased urinary frequency, especially 2 to 3 hours after consuming sugary drinks, along with nocturia. I am concerned about kidney disease or diabetes. Last w...


Dr. Li Zhiyao Reply:
Hello: It is recommended that you consult an endocrinologist for further examination to determine your current condition. As for the causes of diabetes, there are many factors beyond diet, including genetic factors, lifestyle, lack of exercise, and more. The endocrinologist will ...

[Read More] Understanding Diabetes: Symptoms, Testing, and Risk Factors Explained


Understanding Kidney Health: Common Concerns and Diagnostic Tests Explained

How are kidney blood and urine tests conducted, and are there any issues to be aware of? In mid-October, I had blood tests, urine tests, and X-rays done at the nephrology department. The reports came back normal. 1. However, I notice that my urine has bubbles that disappear in ...


Dr. Wu Jiyu Reply:
1. Based on the report you provided, it can only be roughly determined that there is no proteinuria, and it is not possible to fully confirm whether kidney function is normal (as there are no blood test results for creatinine and glomerular filtration rate provided). 2. Most cas...

[Read More] Understanding Kidney Health: Common Concerns and Diagnostic Tests Explained


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