Work the case from chemistry to sediment

The first-morning clean-catch specimen was collected at 08:10, received at 08:40, and tested within the analyzer stability window. Creatinine was enzymatic and IDMS-traceable at 1.4 mg/dL against a local 0.6-1.3 mg/dL interval. eGFRcr 52 mL/min/1.73 m^2 is G3a.

ACR 145 mg/g is A2. PCR is reported as 210 mg/g; this package supplies no source-backed PCR decision threshold, so interpretation depends on the laboratory's local PCR interval. Protein 1+ is a product-specific dipstick grade, not a concentration-normalized ACR/PCR result. Repeat first-morning ACR is needed before treating albuminuria as established.

Under the illustrative local microscopy rule, blood 2+ with 3–5 RBC/hpf supports intact-RBC hematuria. A 2+ blood pad with only 0–2 RBC/hpf would be discordant and would raise hemoglobin, myoglobin, lysed cells, or interference. Granular casts provide renal-parenchymal context; muddy-brown granular casts are the specific morphology clue for tubular injury, not a synonym for every granular cast. Absence of RBC casts on one preparation does not rule out glomerular bleeding. Record corroborating and limiting evidence separately.