منابع مشابه
Raised concentration of plasma creatine kinase BB isoenzyme in myelodysplasia.
A 72 year old woman presented with a suspected myocardial infarction. An echocardiograph showed no acute changes but her plasma creatine kinase (CK) activity was increased at 343 U/l (< 175 normal range). The apparent creatine kinase-MB activity by a CK-M subunit immunoinhibition assay was 350 U/l. In view of the discrepancy between the total creatine kinase and CK-MB activity plasma creatine k...
متن کاملWhy does the plasma urea concentration increase in acute dehydration?
Acute dehydration biochemically manifests itself with mild uremia and a normal creatinine concentration. The reason for this, as quoted in popular medical textbooks, is that there is increased reabsorption of urea by the kidneys (1). This explanation is rarely taken further by clinical tutors or lectures on laboratory medicine. However, an appreciation of the physiology of the renal tubules all...
متن کاملHigh plasma urea concentration in babies with lamellar ichthyosis.
Sir, Guiscafre et al have reported two cases of meningitis due to Haemophilus influenzae type b tesistant to ampicillin and chloramphenicol.' In their report they say 'since 1980 eight cases of meningitis. have been reported'. This is not true. In previous reports we have drawn attention to the explosive increase of multiply resistant strains of H. influenzae type b causing invasive and non-inv...
متن کاملThe cause of the raised plasma urea of acute heart failure.
The concentrations of urea, urate, phosphate and creatinine were measured in the plasma of 30 consecutive patients admitted acutely with heart failure. On admission, 20 had a raised plasma urea, 21 had a raised plasma urate, but only 6 had a raised plasma phosphate and only 6 had a raised plasma creatinine. A further 9 of the patients developed a raised plasma urea after admission. The increase...
متن کاملUrea Concentration and Haemodialysis Dose
Background. Dialysis dose is commonly defined as a clearance scaled to some measure of body size, but the toxicity of uraemic solutes is probably associated more to their concentrations than to their clearance. Methods. 619 dialysis sessions of 35 patients were modified by computer simulations targeting a constant urea clearance or a constant urea concentration. Results. Urea generation rate G ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1977
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.6096.1223-b