Urine Specific Gravity
RenalNormal range
1.005–1.030
☎ When to call
Rarely alone — escalate the oliguria, the I&O gap, or the weight trend it confirms.
What you do
- Quick volume-status clue at the bedside — pair with I&O and daily weight
- Fixed at ~1.010 regardless of intake suggests renal concentrating failure
Causes of HIGH urine specific gravity
Causes of LOW urine specific gravity
Source: Pagana, Mosby's Manual of Diagnostic and Laboratory Tests, 7th ed.Reference only — verify against your facility's policy.
