Urinalysis, Internal Medicine FAQ - Page 5

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Understanding Right Flank Discomfort: Kidney or Gastrointestinal Issues?

Right posterior flank? Hello, doctor. Recently, I have been experiencing a dull, pressure-like sensation in the right side of my lower back, sometimes in the right flank. It feels uncomfortable when sitting down, but it’s not painful. This has been going on for over a week. I fee...


Dr. Wu Jiyu Reply:
Recently, I have been experiencing a feeling of heaviness and pressure in the right side of my lower back, sometimes in the right flank, especially when sitting down. There is no pain, and these symptoms have persisted for over a week. I feel more comfortable when standing. Gener...

[Read More] Understanding Right Flank Discomfort: Kidney or Gastrointestinal Issues?


Why Is My Urine Colorless After Eating Red Dragon Fruit?

Colorless urine? Hello Dr. Wu, As we all know, consuming red dragon fruit can cause urine to appear more reddish. I experienced this normal phenomenon when I previously ate red dragon fruit. However, recently, after eating red dragon fruit, my urine seems to be nearly colorless...


Dr. Wu Jiyu Reply:
The color of urine can indeed vary based on hydration levels and diet. For example, when water intake is low, urine tends to be darker (concentrated), while higher water intake results in lighter urine (diluted). However, this can differ from person to person. Regarding your ques...

[Read More] Why Is My Urine Colorless After Eating Red Dragon Fruit?


Managing Diabetes in Elderly Patients After Pneumonia: Seeking Guidance

I would like to inquire about diabetes issues in elderly patients after illness? Hello, my grandmother is 85 years old and has a history of diabetes, hypertension, and heart disease. She was hospitalized for pneumonia at Kaohsiung Veterans General Hospital on March 19. On April 3...


Dr. Chen Qingbin Reply:
Hello, your grandmother is advanced in age and has experienced multiple organ failure. It is best to go to a treatment hospital for an evaluation of her condition before proceeding with further management and treatment.

[Read More] Managing Diabetes in Elderly Patients After Pneumonia: Seeking Guidance


Understanding Elevated White Blood Cells in Urinalysis Results

Urinalysis Hello doctor, during my health check-up, my urine test showed 8-10 white blood cells, while everything else was normal. I'm not sure what this means. Thank you.


Dr. Wu Jiyu Reply:
During a health check-up, if the urine test shows 8-10 white blood cells and there are no symptoms of urethritis, treatment is not necessary. It is recommended to follow up later. Thank you for your inquiry. This is a message from the Nephrology Department of Changhua Hospital, c...

[Read More] Understanding Elevated White Blood Cells in Urinalysis Results


Understanding Sudden Anuria and Swelling: Causes and Concerns

Sudden anuria? Hello, I usually exercise very little and spend most of my time indoors. Previously, when the temperature was high at 38 degrees Celsius, my feet suddenly swelled while walking outside. Both of my feet became edematous, and when I pressed on them, they would indent...


Dr. Wu Jiyu Reply:
Hello, Xiaoyu: Based on the information you provided, the acute kidney injury you experienced may be suspected to be caused by heat exhaustion or heat stroke due to walking outside in high temperatures of 38 degrees Celsius. However, since you adequately replenished fluids and re...

[Read More] Understanding Sudden Anuria and Swelling: Causes and Concerns


Understanding Proteinuria in Teenagers: Causes and Concerns

Hello, I am 15 years old, male, and I have been tested for proteinuria with a result of 791 mg/dL? Two months ago, I experienced frequent swelling and pain in the area above my right testicle (the pubic region). The pain was severe enough that movement in that area would cause sh...


Dr. Wu Jiyu Reply:
1. When checking for proteinuria, it is important to first rule out conditions such as exercise, infection, and fever, as these factors can lead to an increase in proteinuria and result in inaccurate readings. 2. It is recommended to repeat the test (remember that the first morn...

[Read More] Understanding Proteinuria in Teenagers: Causes and Concerns


Understanding Abnormal Kidney Function: What You Need to Know

Is there any abnormality in kidney function? Hello, Doctor. Last July, I had a urinalysis that showed hematuria and proteinuria, both positive. In August, I went to another hospital for another urine test, and again, there were reactions for hematuria and proteinuria. After blood...


Dr. Wu Jiyu Reply:
1. First, let's discuss the risk factors for kidney disease: the three highs (hypertension, hyperglycemia, and hyperlipidemia) and proteinuria. Based on the data you provided: Blood Pressure??? Blood Glucose (GLU AC) 89 mg/dL: OK; Lipid Profile Cholesterol 224 mg/dL: borderl...

[Read More] Understanding Abnormal Kidney Function: What You Need to Know


Understanding Acute Kidney Failure: Symptoms, Diagnosis, and Concerns

Kidney problems Hello, doctor. Recently, I have been drinking a lot of water, but the amount I urinate is very little. I usually exercise a lot and sweat a lot, but lately, my sweat has had a very sour smell, somewhat like ammonia. Additionally, I have been experiencing a dull pa...


Dr. Wu Jiyu Reply:
1. Regarding acute renal failure (acute renal failure, also known as acute kidney injury): It is essential to understand the functions of the kidneys in the body. The kidneys primarily eliminate toxins produced from protein metabolism (commonly referred to as uremia) and regulate...

[Read More] Understanding Acute Kidney Failure: Symptoms, Diagnosis, and Concerns


Understanding Right Groin Discomfort: Seeking the Right Medical Advice

Right groin? Since last summer, I've been experiencing discomfort on the right side of my body, starting with pain that is hard to describe. The uncomfortable area is located to the right of my right testicle, in the perineum, and the upper right side of my anus (initially, ...


Dr. Wu Jiyu Reply:
First, let's clarify a few points that may not seem related to nephrology (I am a nephrologist). 1. Where exactly do you feel discomfort? Is it in the scrotum, inner thigh, perineum, or near the anus? A physician examining you in person would have a better understanding of...

[Read More] Understanding Right Groin Discomfort: Seeking the Right Medical Advice


Is Kidney Shrinkage Serious? Understanding Ultrasound Results and Function

Is it serious if an ultrasound examination suggests that the kidneys are possibly smaller? Hello, doctor. I recently had a routine kidney check-up (due to having hematuria since childhood and regular follow-ups). My kidney function is otherwise normal, except for a creatinine lev...


Dr. Wu Jiyu Reply:
The size of the kidneys is not necessarily related to kidney function; it is important to look at the results of blood tests and urinalysis for accurate assessment. Additionally, in terms of size, while 9 cm is smaller than 10 cm, the difference is minimal and does not warrant ex...

[Read More] Is Kidney Shrinkage Serious? Understanding Ultrasound Results and Function


Foamy Urine and Yellow Color: What It Means and When to Seek Help

Foamy urine? Hello Dr. Wu, I have recently noticed that my urine is a darker yellow color and has a lot of foam. Could you please tell me what this might indicate? What tests should I undergo and which specialist should I consult? Thank you. QQ


Dr. Wu Jiyu Reply:
If you notice that your urine is yellow and has a lot of foam, it is advisable to have a urinalysis to clarify any issues related to proteinuria, as proteinuria can cause foamy urine. However, the presence of foam in urine does not necessarily indicate proteinuria; it can also be...

[Read More] Foamy Urine and Yellow Color: What It Means and When to Seek Help


Understanding Bilateral Renal Cysts: Concerns and Management Options

Bilateral renal cysts? Hello, Doctor. Around May, I underwent a health check-up due to frequent feelings of dizziness and lack of energy. An abdominal ultrasound revealed "bilateral renal cysts" and a "right lobe liver mass." Initially, my family medicine phys...


Dr. Wu Jiyu Reply:
Dear Tesuia: Based on your description (both kidneys are filled with various sizes of cysts), it is possible that you have "hereditary polycystic kidney disease." Fortunately, your blood test results for kidney function are normal, and the urine protein test is (±) pend...

[Read More] Understanding Bilateral Renal Cysts: Concerns and Management Options


Understanding Hematuria: Causes, Effects, and Treatment Options

Regarding hematuria? Dear Doctor: I recently had a health check-up and the report indicated that I have hematuria (blood in urine). Is this due to kidney stones or other reasons? What is the impact on my health? What treatment should I pursue?


Dr. Xiao Yongxun Reply:
Hello: In response to your question, 1. "Urine occult blood" refers to the blood urine reaction detected by a test strip, indicating that under high-power microscopy, the number of red blood cells may exceed three. The sensitivity is approximately 90%. However, false po...

[Read More] Understanding Hematuria: Causes, Effects, and Treatment Options


Understanding Lower Abdominal Pain: Is It Related to Constipation?

Lower abdominal pain issues? Hello Doctor, about two years ago, I suddenly experienced severe pain in the lower abdomen, just below the navel. I sometimes have constipation. I went to the emergency room, where the doctor performed an X-ray and a urinalysis, but no abnormalities w...


Dr. Sun Yizhen Reply:
Hello Tina, please come to the outpatient clinic for a clinical evaluation. Thank you! Wishing you well.

[Read More] Understanding Lower Abdominal Pain: Is It Related to Constipation?


Does Taking Isoflavones for Over a Month Affect Blood and Urine Tests?

Isoflavones If I take isoflavones for more than a month, will it affect my blood tests and urine tests?


Dr. Wang Fangli Reply:
Routine blood tests and urinalysis are generally not affected.

[Read More] Does Taking Isoflavones for Over a Month Affect Blood and Urine Tests?


Understanding Proteinuria: Causes, Concerns, and Kidney Health

Concerns about proteinuria? Hello, doctor. My brother recently had a urinalysis, which showed 2+ proteinuria. He had consumed a lot of high-protein foods before the test. The doctor advised him to return for follow-up after some time, and the results showed that both the urinalys...


Dr. Yang Zhongwei Reply:
Hello: 1. There is currently no clear answer regarding the direct relationship between high-protein foods and proteinuria. 2. Certain conditions can cause transient proteinuria, such as fever, intense exercise, or infections, but these usually resolve to normal. 3. Ultrasound is ...

[Read More] Understanding Proteinuria: Causes, Concerns, and Kidney Health


Concerns About Kidney Health: Understanding Atrophy and Function Tests

Concerned about needing dialysis? I underwent an ultrasound examination in 1999, which revealed left kidney atrophy. I have been having regular health check-ups every two years, and my left kidney measures approximately 6 centimeters. I have also had detailed examinations at a ma...


Dr. Yang Zhongwei Reply:
Hello: 1. A person only needs one normal kidney to manage bodily functions, so in your case, even though only the right kidney is functioning normally, your blood test results for kidney function and urinalysis are normal. 2. The presence of foam in the urine without proteinuria ...

[Read More] Concerns About Kidney Health: Understanding Atrophy and Function Tests


Understanding Left Side Lower Back Pain: Causes and Concerns for Students

Left flank pain? Hello Dr. Wu, I would like to ask you: I am a senior high school student, and since July of last year, I have been studying at a cram school for about fourteen hours a day, drinking approximately 1000 to 1500 cc of water daily. Starting in March of this year, as ...


Dr. Wu Jiyu Reply:
1. First, rule out kidney inflammation or kidney stones—consider arranging for a urinalysis and renal ultrasound. 2. If neither of these is the cause, consider inflammation of the muscles and tendons beside the spine (which may be caused by prolonged sitting; please ensure proper...

[Read More] Understanding Left Side Lower Back Pain: Causes and Concerns for Students


Understanding Kidney Health: Tests, Symptoms, and Vitamin Concerns

Kidney problems Hello: 1. What tests should be performed to diagnose all types of kidney diseases? 2. My urine has foam and it takes a long time to dissipate. My parents say they also have foamy urine. Does foamy urine indicate the presence of proteinuria? 3. Is it true that ex...


Dr. Wang Weijie Reply:
The symptoms of primary kidney disease can be detected through urine screening. Urinalysis can reveal signs of kidney damage by checking for proteinuria, hematuria, red blood cells, white blood cells, and ketones. If you have concerns, you can visit relevant hospitals, clinics, o...

[Read More] Understanding Kidney Health: Tests, Symptoms, and Vitamin Concerns


Understanding Morning Lower Back Pain: Causes and Solutions

Lower back pain? Hello Doctor, I have been experiencing severe lower back pain every morning when I wake up. At times, the pain is so intense that it makes it difficult to breathe, and I often wake up due to the pain. However, the discomfort usually subsides on its own after abou...


Dr. Wang Weijie Reply:
Your symptoms resolve on their own after about half an hour? This seems more like pain caused by neuromuscular issues. You might consider consulting a neurosurgeon or orthopedic specialist for a spinal X-ray to determine if there is any nerve compression. Typically, pain caused b...

[Read More] Understanding Morning Lower Back Pain: Causes and Solutions


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