This typically involves: Intrinsic factor antibodies (highly specific for pernicious anaemia, though sensitivity is only 50%) [12] [28] Gastric parietal cell antibodies (more sensitive but less specific) Coeliac serology if malabsorption is suspected Consideration of upper gastrointestinal endoscopy in selected cases, particularly with autoimmune gastritis/pernicious anaemia NICE guidance emphasises that treatment should not be delayed whilst awaiting antibody results if clinical features strongly suggest deficiency, as irreversible neurological damage can occur
Sigalos JT, Pastuszak AW
Maybe you're tired all the time
This vascular recovery effect characterized the azygos vein, as the rapidly upgraded minor vessel to take over the function of the disabled major vessel, to compete with the ongoing injury, and to bring direct blood flow to the superior caval vein [66,71,72,73,74,75,76,77,78,79,80,81,82]