online Medical Courses

A Diagnostic approach to Proteinuria

Email Comment bookmark
Font : A-A+

A Diagnostic approach to Proteinuria
Proteinuria on initial dipstick urinalysis testing is found in as much as 17 percent of selected populations. Although a wide variety of conditions , ranging from benign to lethal, can cause proteinuria, fewer than 2 percent of patients whose urine dipstick test is positive for protein have serious and treatable urinary tract disorders.

Common Causes of Benign Proteinuria
Dehydration Intense activity
Emotional stress Most acute illnesses
Fever Orthostatic
Heat injury (postural) disorder
Inflammatory process

Definition of Proteinuria
Proteinuria is defined as urinary protein excretion of greater than 150 mg per day. Urinary protein

excretion in healthy persons varies considerably and may reach proteinuric levels under several circumstances. Most dipstick tests that are positive for protein are a result of benign proteinuria, which has no associated morbidity or mortality (Table 1). About 20 percent of normally excreted protein is a low-molecular-weight type such as immunoglobulins (molecular weight about 20,000 Daltons), 40 percent is high-molecular-weight albumin (about 65,000 Daltons) and 40 percent is made up of Tamm-Horsfall mucoproteins secreted by the distal tubule


Post a Comment

Comments should be on the topic and should not be abusive. The editorial team reserves the right to review and moderate the comments posted on the site.
Notify me when reply is posted
I agree to the terms and conditions

CME Lessons

Medindia Newsletters

Subscribe to our Free Newsletters!

Terms & Conditions and Privacy Policy.