Nitrite test
A nitrite test is a chemical test used to determine the presence of nitrite ion in solution.
Chemical method
A common nitrite test can be performed by adding 4 M sulfuric acid to the sample until acidic, and then adding 0.1 M iron(II) sulfate to the solution. A positive test for nitrite is indicated by a dark brown solution, arising from the iron-nitric oxide complex ion.
Urinary nitrite test
A nitrite test is a standard component of a urinary test strip. A positive test for nitrites in the urine is called nitrituria.
This test is commonly used in diagnosing urinary tract infections (UTI). A positive nitrite test indicates that the cause of the UTI is a gram negative organism, most commonly Escherichia coli. The reason for nitrites' existence in the presence of a UTI is due to a bacterial conversion of endogenous nitrates to nitrites.
This may be a sign of infection, however, the other parameters such as leukocyte esterase, urine white blood cell count, and symptoms such as dysuria, urinary urgency, fevers and chills must be correlated to diagnose an infection.
Podcasts:
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by Electric Light Orchestra
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by Queensryche
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by Dokken
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by Espen Lind
Nightrider
by: Electric Light OrchestraI remember somewhere in the rain,
The faces of the passers-by,
Staring faces broken blinds,
I recall the situation clearly standing in a crowded car,
I can feel the need in me.
CHORUS:
Hold on, nightrider baby,
Hold on you're a nightrider,
Riding the night, searching for what is gone,
Never reaching the end, so you must travel on.
I still see that vision of delight,
While cruising on the black of night,
But she keeps a step ahead,
Looking out the corner of her world,
Nobody ever knows a girl, who once lived along this way.
CHORUS: Repeat
Desolation degradation row,
Don't let the feeling show,
She's a ten a penny dream,
Faces with no name and no address,
Keep staring in on my distress, but she kills me with her smile.
CHORUS : Repeat