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What are the ways to detect blood in the urine?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

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iCliniq medical review team

Published At June 23, 2022
Reviewed AtJune 23, 2022

Patient's Query

Hello doctor,

I am a 48-year-old woman. Recently, I found blood in my urine, for which I had taken antibiotics. However, after a few days, there was blood noticed again. So, my urologist suggested a CT scan with a dye and cystoscopy. The test reports were normal. However, I have high blood pressure and cholesterol. Also, about seven months back, I had a partial laparoscopic hysterectomy.

Kindly advise.

Hello,

Welcome to icliniq.com.

I have read your query and understand your concern. Is the blood in urine gross hematuria or microscopic hematuria? Gross hematuria means the visible red color in the urine. Also, are there any other symptoms while urination? Since how many days are you having symptoms? Can you attach a report of the tests done?

Kindly revert with the answers to the above questions.

Thank you.

Patient's Query

Hello doctor,

Thank you for your response. The hematuria is microscopic. My test reports also show that the kidney, bladder, and urethra are normal. However, I have a urethral discharge sometimes, which is red. What can be the reason for it?

Kindly guide.

Hello,

Welcome back to icliniq.com.

Cystoscopy is normal, which means the outer urine flow tract, including the bladder and urethra, are normal and are not the source of bleeding. How did you come to know that there is microscopic hematuria? Also, is there any associated protein loss in the urine? Any dysmorphic RBCs (red blood cells) or RBC casts? Can you attach the laboratory report showing microscopic hematuria? Also, I would like to see the other urine findings in the report.

Kindly get back with the answers to the above questions.

Thank you.

Patient's Query

Hello doctor,

Thank you for the response.

The urine test shows traces of blood. However, there are no sexually transmitted diseases, no bacterial growth, and no protein in the urine. Also, my kidney looks healthy as per the CT scan. Is the complaint because of the partial hysterectomy?

Kindly advise.

Hello,

Welcome back to icliniq.com.

Thank you for the history. I have seen the reports (attachments removed to protect the patient's identity). The reports show that the blood trace is two+, which means it is a urine dipstick report. This has to be confirmed with a microscopic examination of the urine for the presence of RBCs. Hematuria is common and can result from menstruation, viral illness, allergy, exercise, or mild trauma. Persistent or significant hematuria means greater than three RBCs per HPF (red blood cells per high-power field) on three urine analysis tests or a single urinalysis with greater than 100 RBCs. After confirming the cause of hematuria, a detailed medical history and tests are to be done to find the cause of the microscopic hematuria, whether it is of glomerular or non-glomerular origin.

Also, no bacterial growth rule out UTIs (urinary tract infections), and no protein loss indicates a less likely chance of glomerular origin. Also, your present problem is unrelated to the past surgery as your imaging modality tests are normal. I suggest you to see a nephrologist to diagnose the possible cause of microscopic hematuria. Also, you can repeat the microscopic examination of urine.

I hope this helps.

Thank you.

Patient's Query

Hello doctor,

Thank you for the detailed response.

As per your suggestion, I will consult a urologist.

Hello,

Welcome back to icliniq.com.

Since you already consulted a urologist, I suggest you to consult a nephrologist as a nephrologist can also interpret test results. Can you attach the urinalysis test report done earlier? Also, what is the duration of the symptoms? And are there any other symptoms?

Kindly get back with the answers to the above questions.

Thank you.

Patient's Query

Hello doctor,

Thank you for the response.

Recently my doctor has asked me to switch my blood pressure medication. I have a history of rheumatoid arthritis. Also, I have Reynaud's phenomenon, which makes my hands pale during winter. I take tablet Nifedipine for blood pressure. Taking this for the last ten years has led to edema. My doctor advised me to use tablet Losartin and tablet Amlodipine instead of tablet Nifedipine. For the last two weeks, I have stopped taking tablet Amlodipine to see if it reduces the blood in my urine. I noticed a decrease in blood in the urine. My doctor suggested me to stop the medication and observe the changes. Also, why do I have a white urethral discharge?

Kindly advise.

Hello,

Welcome back to icliniq.com.

Thank you for the reply. Tablet Amlodipine (Amlodipine Besylate) and tablet Nifedipine belong to dihydropyridines which are calcium channel blockers. Tablet Amlodipine can provide relief in episodes of Raynaud's phenomenon; however, it causes ankle edema as a side effect. As you have noticed a change in blood urine after stopping the medicine, I suggest you to stop and see for a few more days. A white urethral discharge means an infection of the urethra. An infection can also be the reason for blood in the urine.

Is there any burning micturition or increase in the frequency of micturition? Also, how did you notice a change in blood in urine, as it can be detected only in a laboratory test?

Kindly follow up with laboratory test reports to guide you better.

Thank you.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Basuki Nath Bhagat
Dr. Basuki Nath Bhagat

Family Physician

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