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Emergency Medication Administration Guidelines
Effective emergency care relies on rapid, accurate medication administration. This course covers the most common emergency drugs, their recommended doses, routes, and clinical indications.…
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When should ipratropium bromide be added to a treatment plan for a patient with acute asthma?
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A 30‑year‑old patient with severe pain receives morphine intravenously. Which dosage range is appropriate for this adult?
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For a child aged 4 years with asthma, what is the correct nebulised dose of salbutamol?
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When is it appropriate to administer oxygen to a patient with chronic obstructive pulmonary disease (COPD)?
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Which route of administration provides the fastest onset of action for salbutamol?
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A 70‑kg adult requires naloxone for opioid overdose. Which of the following doses is correct for intramuscular injection?
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What is the maximum single oral dose of paracetamol that can be safely given to an adult?
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In a patient with suspected myocardial infarction, which medication should be administered promptly?
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For a child older than 12 years, what volume of activated charcoal should be administered in an acute oral poisoning case?
Emergency Medication Administration Guidelines
Effective emergency care relies on rapid, accurate medication administration. This course covers the most common emergency drugs, their recommended doses, routes, and clinical indications. Mastering these guidelines helps clinicians act confidently in high‑stakes situations while adhering to best‑practice standards.
Adrenaline for Anaphylaxis
Key point: The adult intramuscular (IM) dose of adrenaline for anaphylaxis is 0.5 mg (500 µg). This dose provides swift vasoconstriction and bronchodilation, reversing life‑threatening symptoms.
- Route: Intramuscular injection, preferably into the mid‑outer thigh.
- Onset: 5–10 minutes.
- Repeat dose: Every 5–15 minutes if symptoms persist.
Remember the mnemonic "Half‑milligram, half‑second relief" to recall the dose quickly.
Ipratropium Bromide in Acute Asthma
When to add: Use ipratropium bromide as an adjunct to beta2‑agonists when a patient’s symptoms remain uncontrolled after initial bronchodilator therapy.
- Mechanism: Anticholinergic bronchodilation complements beta2‑agonist action.
- Typical regimen: 0.5 mg nebulised every 20 minutes for up to 3 doses.
- Clinical cue: Persistent wheeze or dyspnea despite salbutamol.
Think “add‑on when beta2‑agonist alone fails.”
Intravenous Morphine for Severe Pain
Appropriate adult IV dose: 2.5 mg to 5 mg. This range balances effective analgesia with safety, avoiding excessive respiratory depression.
- Initial bolus: 2.5 mg IV, titrate to effect.
- Maximum single dose: 5 mg unless the patient is opioid‑tolerant.
- Monitoring: Observe respiratory rate, level of consciousness, and pain score.
Mnemonic: “mid‑single digits” for IV morphine.
Pediatric Nebulised Salbutamol
Correct dose for a 4‑year‑old: 2.5 mg nebulised. The calculation is based on 0.15 mg/kg; a typical 4‑year‑old weighs ~15 kg, yielding roughly 2.5 mg.
- Administration: Nebuliser with a face mask or mouthpiece.
- Frequency: Every 20 minutes for the first hour, then reassess.
- Safety tip: Avoid exceeding 5 mg per dose in children.
Remember: “Half‑tablet equals child dose.”
Oxygen Therapy in COPD
Target saturation: Administer supplemental oxygen when SpO₂ falls below 88 %. COPD patients are prone to CO₂ retention; a lower oxygen target prevents hypoventilation.
- Delivery methods: Nasal cannula (2–4 L/min) or simple face mask (5–6 L/min).
- Goal: Maintain SpO₂ 88–92 %.
- Monitoring: Continuous pulse oximetry and, when indicated, arterial blood gases.
Mnemonic: “88 % = safe ceiling.”
Fastest Onset of Salbutamol
The intravenous (IV) route provides the quickest onset for salbutamol, delivering the drug directly into the bloodstream and bypassing absorption delays.
- Onset: Within 1–2 minutes.
- Indications: Severe bronchospasm unresponsive to inhaled therapy.
- Dose: 0.5 mg IV bolus, repeat as needed.
Remember: IV = instant delivery.
Naloxone for Opioid Overdose
Standard IM dose: 0.4 mg for adults. This dose rapidly reverses opioid‑induced respiratory depression while minimizing the risk of precipitating acute withdrawal.
- Route: Intramuscular injection, preferably into the thigh.
- Onset: 2–5 minutes.
- Repeat dosing: Every 2–3 minutes until adequate respiration returns.
Mnemonic: “four‑tenths of a milligram, always.”
Maximum Single Oral Dose of Paracetamol
The safe single oral dose for an adult is 1000 mg (2 × 500 mg tablets). This stays well below the 4 g daily ceiling, reducing the risk of hepatotoxicity.
- Maximum daily dose: 4 g (8 tablets of 500 mg).
- Frequency: Every 4–6 hours as needed.
- Warning: Avoid concurrent use of other acetaminophen‑containing products.
Think: “two tablets, safe dose.”
Putting It All Together: Quick Reference Table
Use this table as a bedside cheat‑sheet for the most common emergency medications.
- Adrenaline (Anaphylaxis): 0.5 mg IM.
- Ipratropium bromide: Add‑on to beta2‑agonist when symptoms persist.
- Morphine IV: 2.5–5 mg.
- Salbutamol (child, 4 yr): 2.5 mg nebulised.
- Oxygen (COPD): Start when SpO₂ < 88 %.
- Salbutamol IV: Fastest onset.
- Naloxone IM: 0.4 mg.
- Paracetamol oral: 1000 mg single dose.
By internalising these dosage guidelines, clinicians can deliver rapid, evidence‑based care that improves patient outcomes in emergency settings.
