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Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.

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Oliguria with muscle weakness

Introduction

Abbreviations: ABG = Arterial blood gases, BUN = Blood urea nitrogen, CBC = Complete blood count, CT = Computed tomography, CRP = C – reactive protein, ECG = Electrocardiogram, ESR = Erythrocyte sedimentation rate, IVP = Intravenous pyelography, KFT = Kidney function test, GI = Gastrointestinal, GFR = Glomerular filtration rate, MRI = Magnetic resonance imaging, PT = Prothrombin time

Etiology Clinical manifestations Paraclinical findings Comments
Symptoms and signs Lab findings Imaging
Fatigue/

Lethargy

Thirst Dizziness/

Confusion

Muscle weakness/

cramp

Somatic/

visceral pain

Vomiting Diarrhea Tachypnea Edema Blood indices Renal Funtion test Electrolytes Urine analysis ABG Other Ultrasound X-ray CT MRI Other
Prerenal causes Dehydration[1][2] + + – +/- – +/- +/- – – Not applicable ↑BUN, ↑Cr ↓Na, ↑K, ↓Cl Ketones and glucose, ↑Urine specific gravity ↑Lactate, ↓HCO3 Hypoglycemia Not applicable Not applicable Not applicable Not applicable – –
Drugs/toxins[3][4] +/- +/- +/- +/- +/- +/- +/- +/- +/- Not applicable ↑BUN, ↑Cr, ↑CK ↑K, ↓Mg, ↓Ca, ↓P Ingested drug, Glucose, Aminoacid, Phosphate, Ketone, Hyaline cast, RBC ↑Lactate, Metabolic acidosis Toxicology, Rapid immunoassay Nephropathy Radioopaque substances, Ingested drug packets Not applicable Not applicable – –
Liver cirrhosis[5][6] +/- – +/- +/- +/- – – – +/- Not applicable Not applicable Not applicable Not applicable Not applicable LFT, Aspartate aminotransferase to platelet ratio, FibroTest/FibroSure, Hepascore, FibroSpectatio Portal blood flow velocity, Hepatic artery enlargement, Multifocal lesions or masses, Hepatic contour, Ascites, Splenomegaly Bowel perforation, Gynecomastia, Azygos vein enlargement, Pleural effusion Morphologic changes in the liver, Collaterals and shunts, Hyperattenuating nodule of hepatocellular carcinoma, Portal vein thrombosis Vacular patency, Tumor invasion, Portal vein thrombosis, Steatosis Hepatic function and portal hypertension in nuclear imaging, Hepatic perfusion and the development of shunts and tumors in angiography Irreversible and a transplant is usually needed
Shock[7] +/- +/- +/- +/- +/- +/- – +/- – ↑HCT, ↑PT and aPTT, Eosinophilia, Leukocytosis ↓GFR, ↑BUN, ↑Cr Not applicable Not applicable ↑Lactate LFT, ↑BNP, ↑Troponin, D-dimer, Fibrinogen Pulmonary embolism, Pericardial effusion, Cardiac tamponade, Pneumothorax, Thoracic or abdominal aortic aneurysm in RUSH (Rapid Ultrasound for Shock and Hypotension) Pneumonia, Pneumothorax, Pulmonary edema, Widened mediastinum, Free air under the diaphragm Traumatic brain injury, Stroke, Spinal injury, Pneumonia, Pneumothorax, Ruptured aneurysm, Aortic dissection, Pulmonary embolism Not applicable – –
Renal causes Endogenous toxins[8][9][10][11][12]

– Hemoglobin

– Myoglobin

– Uric acid

+/- – +/- + – +/- – – +/- Anemia, Thrombocytopenia ↓GFR, ↑BUN, ↑Cr ↑K, ↑Urate, ↓Ca Uricosuria, Hematuria, Myoglobinuria, Casts Not applicable Creatine kinase > 1000 U/L Malignant or cystic lesions, Hydronephrosis, Nephrocalcinosis, Urolithiasis Not applicable Urolithiasis, Wilms tumor, Polycystic kidney disease Not applicable Ureter or bladder abnormality in voiding cystourethrography –
Hemolytic uremic syndrome[13][14][15] +/- – +/- +/- +/- + + – +/- Severe anemia, Thrombocytopenia, ↑ aPTT ↑BUN, ↑Cr Not applicable Mild proteinuria, Red blood cells, Red blood cell casts Not applicable Schistocytes, ↑FDP and D-dimer, ↑ Bilirubin, ↑LDH, ↓Haptoglobin, Stool culture (for E coli 0157:H7 or shigella), ↓ADAMTS-13 activity Ruling out obstruction Not applicable Not applicable Not applicable Diffuse thickening of the glomerular capillary wall, Swelling of endothelial cells, Fibrin thrombi in renal biopsy –

References

  1. ↑ Steiner MJ, DeWalt DA, Byerley JS (June 2004). “Is this child dehydrated?”. JAMA. 291 (22): 2746–54. doi:10.1001/jama.291.22.2746. PMID 15187057.
  2. ↑ Vega RM, Avner JR (June 1997). “A prospective study of the usefulness of clinical and laboratory parameters for predicting percentage of dehydration in children”. Pediatr Emerg Care. 13 (3): 179–82. PMID 9220501.
  3. ↑ Toto RD, Mitchell HC, Lee HC, Milam C, Pettinger WA (October 1991). “Reversible renal insufficiency due to angiotensin converting enzyme inhibitors in hypertensive nephrosclerosis”. Ann. Intern. Med. 115 (7): 513–9. PMID 1883120.
  4. ↑ Bismuth C, Gaultier M, Conso F, Efthymiou ML (1973). “Hyperkalemia in acute digitalis poisoning: prognostic significance and therapeutic implications”. Clin. Toxicol. 6 (2): 153–62. doi:10.3109/15563657308990513. PMID 4715199.
  5. ↑ Ge PS, Runyon BA (March 2014). “The changing role of beta-blocker therapy in patients with cirrhosis”. J. Hepatol. 60 (3): 643–53. doi:10.1016/j.jhep.2013.09.016. PMID 24076364.
  6. ↑ Becker CD, Scheidegger J, Marincek B (1986). “Hepatic vein occlusion: morphologic features on computed tomography and ultrasonography”. Gastrointest Radiol. 11 (4): 305–11. PMID 3533689.
  7. ↑ Vincent JL, De Backer D (October 2013). “Circulatory shock”. N. Engl. J. Med. 369 (18): 1726–34. doi:10.1056/NEJMra1208943. PMID 24171518.
  8. ↑ Borowitz MJ, Craig FE, Digiuseppe JA, Illingworth AJ, Rosse W, Sutherland DR, Wittwer CT, Richards SJ (July 2010). “Guidelines for the diagnosis and monitoring of paroxysmal nocturnal hemoglobinuria and related disorders by flow cytometry”. Cytometry B Clin Cytom. 78 (4): 211–30. doi:10.1002/cyto.b.20525. PMID 20533382.
  9. ↑ Knochel JP (1982). “Rhabdomyolysis and myoglobinuria”. Annu. Rev. Med. 33: 435–43. doi:10.1146/annurev.me.33.020182.002251. PMID 6282181.
  10. ↑ Giannoglou GD, Chatzizisis YS, Misirli G (March 2007). “The syndrome of rhabdomyolysis: Pathophysiology and diagnosis”. Eur. J. Intern. Med. 18 (2): 90–100. doi:10.1016/j.ejim.2006.09.020. PMID 17338959.
  11. ↑ Coe FL (September 1983). “Uric acid and calcium oxalate nephrolithiasis”. Kidney Int. 24 (3): 392–403. PMID 6645213.
  12. ↑ Maalouf NM, Cameron MA, Moe OW, Sakhaee K (March 2004). “Novel insights into the pathogenesis of uric acid nephrolithiasis”. Curr. Opin. Nephrol. Hypertens. 13 (2): 181–9. PMID 15202612.
  13. ↑ Noris M, Remuzzi G (April 2005). “Hemolytic uremic syndrome”. J. Am. Soc. Nephrol. 16 (4): 1035–50. doi:10.1681/ASN.2004100861. PMID 15728781.
  14. ↑ Goodship TH, Cook HT, Fakhouri F, Fervenza FC, Frémeaux-Bacchi V, Kavanagh D, Nester CM, Noris M, Pickering MC, Rodríguez de Córdoba S, Roumenina LT, Sethi S, Smith RJ (March 2017). “Atypical hemolytic uremic syndrome and C3 glomerulopathy: conclusions from a “Kidney Disease: Improving Global Outcomes” (KDIGO) Controversies Conference”. Kidney Int. 91 (3): 539–551. doi:10.1016/j.kint.2016.10.005. PMID 27989322.
  15. ↑ Loirat C, Fakhouri F, Ariceta G, Besbas N, Bitzan M, Bjerre A, Coppo R, Emma F, Johnson S, Karpman D, Landau D, Langman CB, Lapeyraque AL, Licht C, Nester C, Pecoraro C, Riedl M, van de Kar NC, Van de Walle J, Vivarelli M, Frémeaux-Bacchi V (January 2016). “An international consensus approach to the management of atypical hemolytic uremic syndrome in children”. Pediatr. Nephrol. 31 (1): 15–39. doi:10.1007/s00467-015-3076-8. PMID 25859752.

Editor-In-Chief:
C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Eiman Ghaffarpasand, M.D. [2]