26th February 2025

A 35-year-old female with known systemic lupus erythematosus comes to see you in clinic for her routine appointment.

A 35-year-old female with known systemic lupus erythematosus comes to see you in clinic for her routine appointment. She feels generally well, although on direct questioning reveals that she has had some joint pain, diffuse hair loss and one mouth ulcer over the past month.

Physical examination is normal, and she is normotensive. Urinalysis shows 3+ of protein on the urine dip, and the subsequent protein:creatinine ratio comes back elevated at 300.

What is the most common form of lupus nephritis?

Select the SINGLE most appropriate option from the list below. Select ONE option only.