As far as I know there is no such thing as a Normal "blood" level in urine. Blood (or I guess that you mean red blood cells) appearing in the urine is a sign of a variety of conditions, especially of kidney origin.
My advice would be to consult your doctor, and/or rephrase your question of what exactly you mean by 'blood" level in urine. In addition please also add a unit to this 53 value.
P.S. Have you recently (last few weeks) had a bacterial inflammation of some sort? May be soar throat and/or pharyngitis? If so, you should consult your physician.
I am sorry that i can't give you a more complete answer.
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The normal range is from 24-204 U/L. This level may not an appropriate range for individuals that do cardiovascular excersize. Using levels of Creatine Kinase as a barometer for health is a bit tricky in that most disorders that involve elevated levels of CK as a symptom, usually will include other more glaring symptoms.
Normal triglyceride levels are considered to be anything below 150mg/dL. This is considered low risk. Slightly above normal is considered 151-199, some risk is considered 200-499, and high risk is anything above 500mg/dL.
normal breathing
After a parathyroidectomy, the calcium levels in the blood are monitored through regular blood tests. The healthcare provider will check the blood calcium levels and adjust calcium supplements or medications as needed to maintain normal levels. Symptom monitoring may also be used, watching for signs of hypocalcemia or hypercalcemia.
Peeing blood with a UTI is not a normal symptom and may indicate a more serious issue. It is important to seek medical attention if you experience this symptom.
Normal species are species whose population levels are considered to be normal for their survival. For example: cattle, Sal, pine, rodents, etc.
Triglycerides are fat particles in your bloodstream that can be very harmful to your health. Levels above 200 mg/dL are considered to high and levels below 150 are considered normal.
Normal levels range between 3.5-5.2 so you have nothing to worry about at this point.
Fasting affects glucose levels by reducing below what might be considered normal levels. It is safe as long as blood glucose levels do not drop below around 60 milligrams.
Normal triglyceride levels are considered to be anything below 150mg/dL. This is considered low risk. Slightly above normal is considered 151-199, some risk is considered 200-499, and high risk is anything above 500mg/dL.
Breasts can become tender before menstruation as a result of hormonal imbalance, higher levels of estrogen can cause the ducts of the breasts to swell and become tender. This is a common symptom of menstruation but shouldn't be considered normal, it can be reduced by regulating hormones or if it continues you should talk to your doctor about the problem.