Urine Protein (Dipstick)

When high

If Positive (trace to 3+):

• First rule out transient causes: strenuous exercise within 48h, fever, urinary tract infection, dehydration, or postural (orthostatic) proteinuria
• Retest on a rest day with first morning urine; transient proteinuria usually clears on repeat
• Confirm and quantify any persistent positive with a spot urine albumin/creatinine ratio (ACR): the dipstick is a screen, not a diagnosis

Key Context for Athletes:

• Exercise-induced proteinuria is intensity-dependent and resolves within 24-48h of rest: a single positive after a hard session is rarely meaningful
• Persistent proteinuria confirmed by ACR, especially with rising creatinine or falling eGFR, needs evaluation: review trenbolone, oral AAS, and NSAID use
• Control blood pressure (target under 130/80); hypertension drives proteinuria and is common with AAS use

Pharmacological options (for confirmed persistent proteinuria):

• ACE inhibitors or ARBs (for example telmisartan 40-80mg/day, losartan 50-100mg/day) reduce proteinuria and protect the kidney; require physician oversight with baseline potassium and eGFR
• Reduce or discontinue nephrotoxic compounds (trenbolone first, then oral AAS) if renal function is declining

When low

If Negative:

• A negative dipstick is the normal finding and is reassuring
• Note that the dipstick can miss early microalbuminuria, so a negative result does not fully exclude early kidney damage in higher-risk PED users: periodic ACR testing is still worthwhile

Clinical context:

• The protein dipstick is a qualitative screen reported as negative, trace, 1+, 2+, or 3+, and reflects mainly albumin
• It is concentration-dependent, so a dilute sample can read falsely low and a concentrated one falsely high: the quantitative ACR corrects for this using creatinine
• Always pair a positive dipstick with an ACR and cross-reference Urine Albumin for accurate kidney-risk staging