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Creatinine is occasionally elevated, and electrolytes are sometimes abnormal. A high blood calcium level is noted in approximately 4% of patients. The LDH level is frequently elevated, indicating the extent of Waldenström macroglobulinemia–related tissue involvement.
A blood sample that has been handled incorrectly can show false-positively high levels of LDH due to erythrocyte damage. It can also be used as a marker of myocardial infarction . Following a myocardial infarction, levels of LDH peak at 3–4 days and remain elevated for up to 10 days.
High turnover of tumor cells leads to spill of potassium into the blood. Symptoms usually do not manifest until levels are high (> 6.5 mmol/L) [normal 3.5–5.0 mmol/L] and they include [8] palpitations, cardiac conduction abnormalities, and arrhythmias (can be fatal) muscle weakness or paralysis; Hyperphosphatemia.
Signs of hemolysis that are present in AIHA include low hemoglobin (blood count), alterations in levels of cell markers of hemolysis; including elevated lactate dehydrogenase (LDH), decreased haptoglobin and elevated unconjugated bilirubin. [4] Reticulocytosis, or an increase in circulating immature red blood cells, may be seen. [4]
There were four factors found to have independent prognostic relevance: age, performance status, LDH, and white blood cell count (WBC). [4] The point values are assigned as follows: 0 points: Age less than 50 years, ECOG performance status of 0–1, LDH less than 0.67 of the upper limit of normal, or WBC of less than 6,700 cells/mcl
Liver function tests (LFTs or LFs), also referred to as a hepatic panel or liver panel, are groups of blood tests that provide information about the state of a patient's liver. [1] These tests include prothrombin time (PT/INR), activated partial thromboplastin time (aPTT), albumin , bilirubin (direct and indirect), and others.