GiT Updates and More
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Gi doctor with interests in endoscopy, gut health, liver & medicine in general.
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✳️ Expert consensus statements for the management of COVID-19-related acute respiratory failure
https://ccforum.biomedcentral.com/articles/10.1186/s13054-021-03491-y
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Non malignant causes of elevated CA19.9 .. ⭕️ A new cause for CA19.9 elevation: heavy tea consumption
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1773667/
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✳️ Venous Blood Gases
1️⃣Whilst not providing quite as much information as arterial samples, VBGs are incredibly useful in the initial work- up of many cases .
2️⃣The availability and ease with which samples can be processed by modern analysers has meant that VBG analysis has become routine.
3️⃣The biggest advantage for the patient is that VBG analysis does not require a painful arterial puncture— it can be performed on a sample that was going to be taken for lab analysis, rather than done as an additional test.
4️⃣A venous blood sample will give accurate readings for K+, lactate, glucose, HCO3– , haemoglobin (Hb), and COHb.
5️⃣In addition, a normal venous pCO2 will exclude hypercarbia.
6️⃣Venous lactate levels are useful in helping with the early identification of patients who are sicker than they initially appear to be, particularly those with sepsis.
7️⃣Use serial VBG analyses to establish the response to treatment, especially
in terms of lactate and K+.
