====== Table of Contents ====== [[#Opioids|Opioids]][[#Opioids-Problem 1|Problem 1]][[#Opioids-Problem 2|Problem 2]][[#Opioids-Problem 3|Problem 3]][[#Opioids-Problem 4|Problem 4]] ====== Opioids ====== \\ ===== Problem 1 ===== \\ A 25-year-old man is found by the ambulance cyanosed but with a detectable pulse. A needle and syringe are on the ground beside him; he has numerous track marks.\\ He is given assisted ventilation with a bag and mask and given 2 mgs of naloxone he becomes aggressive, spits at the ambulance personnel, and runs away.\\ - What are the possible causes for his behaviour? - What route should naloxone be administered? - What are the risks in allowing him to leave? - If he is caught and brought to hospital how long would he need to be observed and what clinical assessment is required to clear him for discharge? \\ ===== Problem 2 ===== \\ A 25-year-old man is found by the ambulance cyanosed but with a detectable pulse. A needle and syringe are on the ground beside him; he has numerous track marks.\\ He is given assisted ventilation with a bag and mask and given 2 mgs of naloxone. His respiratory rate appears to improve but he does not wake.\\ - What is your differential for his lack of response? - Should he receive more naloxone and if so what dose? He is noted to have a swollen buttock and a foot drop. His urine is dark. His CPK is 80 000.\\ - What’s going on and what are you going to do? - What does this imply about his initial presentation? \\ ===== Problem 3 ===== \\ A 31-year-old man is found by the ambulance cyanosed but with a detectable pulse. A needle and syringe are on the ground beside him; he has numerous track marks.\\ He is given assisted ventilation with a bag and mask and given 2 mgs of naloxone. He becomes aggressive, begins sweating profusely and refuses to lie down on the ambulance stretcher.\\ On arrival at hospital he is confused, tachypnoeic and is cyanosed.\\ - What are the possible causes for his behaviour? - What treatments options are there to resolve his cyanosis? - What complications are possible? \\ \\ ===== **Problem 4** ===== \\ \\ A drowsy 2 year old boy is brought into an Emergency Department. His father is on suboxone (buprenorphine/naloxone) maintenance therapy. The child grabbed some tablets when his father wasn't looking and 3 tablets are unaccounted for.\\ \\ \\ - Describe the pharmacokinetics of buprenorphine? - What is the purpose of naloxone in this combination drug? - What is the risk assessment for this child? - How would you manage this child?