Get Virtual Care
For Businesses
About Us
A member asked:
Help please. does vit c cause rbc false neg with urine dip stick test? how many "pees" to rid body of 1000mg of vit c to ensure results are accurate?
8 doctors weighed in across 2 answers
No: Vitamin C does not cause false negative or false positive results for RBC in urine.
Answered 11/27/2017
1.3k views
Depends on brand...: Vit. C has been known to interfere with urine dip stick tests for hemoglobin (which is what tests for RBC's measure).However, Multistix and Chemstrip brands have modified their strips with an overlay that oxidizes Vit C before it reaches the test pad.This has greatly reduced false negatives.Number of pees is irrelevant; empty bladder 6 hours after taking C and urine after that will have little C.
Answered 5/19/2016
1.3k views
Related Questions
A member asked:
I made Urine test & result is ( Pus cells 10-12 0-5 HPF ) & ( RBCs 6-8 0-5 HPF ) My I know what does it mean.
A doctor has provided 1 answer
A member asked:
In urine test, had 1-4 rbcs per hpf . The lab report says it is within normal range. Anyway, Is it a cause of concern ?
A doctor has provided 1 answer
A member asked:
Urinalysis results have three "flagged" areas: Urine Occult Blood - Trace; Urine RBC 4-6/HPF; and Urine Bacteria - Moderate. Cause for concern?
A doctor has provided 1 answer
A member asked:
These are some blood test results and maybe urine, RBC 3.93 M/mcL ,Hgb POC 11.9 g/DL, Sodium Lvl 132 mol/L,Osmolality 256 mOsm/kg. They r low. Ideas?
A doctor has provided 1 answer
A member asked:
What could cause RBC in urine x yr. This time 5-10. Otherwise neg UA.Neg BMP. Also have lupus but controlled.On Plavix for stent but RBC found before?
A doctor has provided 1 answer
People also searched for:
Routine. Urine lab results show color red but sample looked clear, blood small, slight cloudy and few bacteria, all else neg. No RBC found. Should this be tested again or is this a normal test?
Hiv exposure 10 months ago. CBC test result today calcium 10.4 high, ALT 57ul high, Rbc 6.25m/Ul high, Hemoglobin 17.2g/dl high, Hemacrit 53.1% high, urine color yellow, urine app clear, ph6.5, Hiv 4 gen test neg. What is causing all these high read?
On urine test results, urine hemoglobin=trace-intact, urine microscopic = indicated, wbc/hpf=0-3, rbc/hpf=0-3. What do these results & terms mean?
I did a urine test and my result were rbc 1-3, wbc 1-2, epithelial cells moderate, bacteria few, yeast few.... What does it mean?
Micro urine test results wbc, 0 - 2, normal < 5 rbc, 0 - 2, normal < 3 squam epithel, rare bacteria, rare mucus 1+ concerns? Is ongoing monitor req?
Didn't find what you're looking for?
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your questionMore of what we treat
Download HealthTap
Video visit and message your doctor
