Flashcards in Session 10 - Notes Deck (5)
What are the three most likely causes of dark brown urine in a woman?
Acute tubular necrosis``
What investigations are done to assess renal status?
Dipstick of urine - blood, protein. MSU - exclude urine infection; find out if urine suggests
nephritis - RBCs in urine, red cell cast
Serum creatinine and urea - exclude acute renal failure
Serum sodium and potassium - exclude hyperkalemia which may be urgently life
Ultrasound of kidneys - ensures no evidence of CKD, exclude severe parenchymal renal
What investigations are done to assess infection?
Haemoglobin - normochromic anaemia
White cell count and differential - neutrophilia - but not specific for infection
Chest radiograph - pneumonia can occur without physical sign
CRP - along with other acute phase proteins not diagnostic; often raised in immune
disease, higher in infection
MSU and blood cultures [repeated] - no growth
Hb 100.5 g/L, WCC 16x109/L - 90% neutrophils CxR – normal
How can lupus be investigated?
Anti nuclear antiboidies
Low C3 and C4