Blood Gas #2

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Describe and interpret this arterial blood gas: History: 53-year-old woman found collapsed at home. pH 7.58 Na 138 mmol/L pCO2 12.6 mmHg K 3.7 mmol/L pO2 160 mmHg (FiO2 0.25) Cl 108 mmol/L HCO3 12.1 mmol/L Glucose  6.3 mmol/L Lactate 3.5 mmol/L [expand title=”Interpretation”]   What is the pH? 7.58 = alkalaemia What is the primary process? pCO2 12.6 = respiratory alkalosis […]

Blood Gas #1

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Describe and interpret this arterial blood gas: History: 43-year-old man found unresponsive after absconding from the psychiatric ward.  He is intubated and ventilated. pH 7.03 Na 131 mmol/L pCO2 44.3 mmHg K 5.8 mmol/L pO2 89.4 mmHg (FiO2 0.8) Cl 108 mmol/L HCO3 11 mmol/L Glucose 21.3 mmol/L Lactate 12.6 mmol/L Urea 11.5 mmol/L Osmolality 372 mOsm/L Albumin 18 g/L […]

Blood Gas Mnemonics

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High Anion Gap Metabolic Acidosis C Carbon Monoxide, Cyanide A Alcohol, Alcoholic Ketoacidosis T Toluene M Metformin, Methanol U Uraemia D Diabetic Ketoacidosis P Paraldehyde, Phenformin, Paracetamol, Propylene glycol I Iron, Isoniazid L Lactic acidosis (any cause) E Ethylene glycol S Salicylates Causes of Lactic Acidosis Type A: Imbalanced oxygen supply and demand Type B: Metabolic derangements Carbon monoxide Shock […]

Locked Jaw

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Key Points Adequate procedural sedation Protect your thumbs Firm downward and posterior pressure Post procedure care and advice. Management Ensure no contraindications to procedural sedation Ensure no temporomandibular pathology Ensure airway competent senior is available to manage airway Procedural sedation Ketamine 0.5mg/kg Midazolam 1mg Fentanyl 50microg Pad thumbs and place over lower molars, grasp mandible with fingers in a reverse […]