Stephen Smith 4-Variable OMI Calculator Score: 0.00 Interpretation: Unlikely LAD occlusion. Formula: (1.062 × STE 60 ms) + (0.052 × QTc) − (0.151 × QRS in V2) − (0.268 × R-wave in V4) Reference: Driver BE, Khalil A, Henry T, Kazmi F, Adil A, Smith SW. A new 4-variable formula to differentiate normal variant ST […]
Read More »Opioid Equivalence Calculator Opioid Equivalence Calculator Oral Morphine Dose mg (per day) Preparations IV/IM/SC Oral Sublingual Transdermal Rectal IV/IM/SC preparations Fentanyl (0.2): µg Sufentanil (2): µg Codeine (0.25): mg Hydromorphone (15): mg Morphine (3): mg Oxycodone (3): mg Pethidine (0.4): mg Oral preparations Codeine / Dihydrocodeine [0.1–0.15] (0.13): mg Dextropropoxyphene (0.1): mg Hydrocodone (1): mg […]
Read More »Every now and then I come across weird words. Not just medical, mind, every subject. I figure I’ll put them in this little jar and come back once in a while to shake it and smile. Aglet: (noun) a metal or plastic tube fixed tightly round each end of a shoelace.
Read More »Let’s start with the Adrogué–Madias (A-M) formula (1997): Na+ deficit = TBW fraction x weight x ΔNa+ Sodium Deficit Calculator Sex Male (0.6)Female (0.5) Weight: 80 kg Starting [Na+]: 110 mmol/L Target [Na+]: 115 mmol/L Sodium deficit = ksex × Wt × Δ[Na+] = 150 mmol Glucose-adjusted Sodium Calculator Glucose-adjusted Sodium Calculator Measured [Na+] 115 […]
Read More »Choose your favourite formula (60/50 is my default for adults) 60/50 Watson Hume-Weyers Mellits-Cheek (paeds) Age: 18 years Height: 90 cm Weight: 70 kg Male Female Total Body Water: 42 L Intracellular Fluid: 23.1 L Extracellular Fluid: 18.9 L – Plasma volume: 2.8 L 60/50 is from the Report on the Task Group on Reference […]
Read More »This is just to find out what molecules are the right size for what sort of extracorporeal removal, if at all. These weights are (mostly) just an approximation, especially as they get into the tens of thousands. Have a go. I found it interesting, hopefully you might, too. NB: Haemodialysis generally removes molecules <20kDa in […]
Read More »The approach is graphically summarised here. It’s based on Alex Yartsev‘s awe-inspiring Deranged Physiology post, as well as Cohen et al (2016), Lundy & Fischer (2010) and Evenson (2016). The final decision-loop ignores the third possibility, which is that the patient is stable enough to go on living with a chronically-discharging ECF. I had to draw the line […]
Read More »Select the intervention / condition / study from the drop downs and hit search. alternatively just start typing in the ‘search’ box and it’ll udpate live. If you want all ACS-related stuff, type ACS into the search bar. If you want just the ACS stuff related to NSTEMI, consider the dropdown instead. Search ICU Trials […]
Read More »Circle Occlusion and Flow Calculator Larger tube size: 20.0 Fr (d = 6.37 mm) Smaller tube size: 10.0 Fr (d = 3.18 mm) % Occlusion of larger tube: 25.0% Residual flow capacity: 56.3% Residual CSA: 20.5 mm² (≈ 14.5 Fr) Notes: d = diameter; CSA = cross-sectional area; French (Fr) denotes circumference in mm.
Read More »Liquid Medicine Calculator Liquid Medicine Calculator Weight: 14 kg Total daily dose: 45 mg/kg 3 doses per day Medication strength: 250 mg / 5 mL (50.0 mg mL‑1) Bottle size: 100 mL Course length: 5 days Summary Dose (mg):– Dose (mL):– Days per bottle:– Bottles needed:–
Read More »