Luton Hospital
Clinical Guidelines
Access approved clinical protocols, drug references, patient leaflets, emergency guidelines, anaesthesia notes, and clinical calculators in one fast, mobile-friendly reference page.
Quick Access
OPD Guidelines
Outpatient protocols, clinical pathways, and common condition references. Select a file below to open — all documents open in a new tab.
public/guidelines/opd/
Emergency Department Guidelines
Emergency care algorithms, triage notes, and acute management references. Select a file below to open — all documents open in a new tab.
public/guidelines/emergency/
Anti-microbial Guidelines
Antibiotic use, infection protocols, and antimicrobial stewardship references. Select a file below to open — all documents open in a new tab.
public/guidelines/antimicrobial/
Maternal and Child Health
Maternal, paediatric, neonatal, ANC, PNC, and child health guidelines. Select a file below to open — all documents open in a new tab.
public/guidelines/maternal-child/
Patient Leaflets
Patient education materials and condition-specific advice leaflets. Select a file below to open — all documents open in a new tab.
public/guidelines/patient-leaflets/
Anaesthesia Handbook
Luton Hospital – Anaesthesia Handbook. For clinical reference only; verify with approved Luton Hospital protocols.
About This Site
Anaesthesia clinical and teaching resources adapted for Luton Hospital clinical reference. These notes support quick access to protocols, dose references, theatre preparation, and calculator tools.
Training Programme
This handbook section supports Luton Hospital clinical reference, anaesthesia teaching, dose checks, theatre preparation, and quick protocol review. Content should be reviewed and approved by the clinical team before use.
Disclaimer
This is NOT medical advice — it is an educational guide only for those providing anaesthesia at Luton Hospital. Much content is abbreviated for rapid access. Always apply clinical judgment.
Direct Questions & Support
For queries contact Dr. Kemunto or Dr Chege.
| Medication | Induction Dose | Duration | Comment |
|---|---|---|---|
| Thiopental | 2.5–5 mg/kg | 60 min | Decreases BP, SVR, CO; resp. depression |
| Fentanyl | 50–250 mcg | 30–60 min | Blunts hemodynamic response to laryngoscopy |
| Ketamine | 1–2 mg/kg IV | 15–30 min | Maintains ventilation; salivation; releases catecholamines |
| Lidocaine | 1 mg/kg | 90–120 min | Blunts laryngoscopy response; eases propofol "burn" |
| Midazolam | 1–2 mg pre-op | 2–6 h | Anterograde amnesia; avoid in elderly |
| Propofol | 1–2.5 mg/kg | 5–10 min | "Burns" in IV; decreases SVR |
| Medication | Dose | Duration (Onset) | Comment |
|---|---|---|---|
| Rocuronium | 0.6–1.2 mg/kg | 55–80 min (1–2 min) | RSI dose 0.9–1.2 mg/kg |
| Suxamethonium | 1–2 mg/kg | 10–12 min (30 sec) | Avoid in hyperkalemia; RSI of choice |
| Vecuronium | 0.1 mg/kg | 50–80 min (2–3 min) | 3 min to take effect |
| Cisatracurium | 0.15 mg/kg | 60–90 min (3–4 min) | Hoffman degradation |
| Atracurium | 0.5 mg/kg | 30–45 min (3–5 min) | Hoffman degradation; histamine release |
| Agent | MAC | Comment |
|---|---|---|
| Halothane | 0.76% | Least pungent; risk hepatotoxicity |
| Isoflurane | 1.2% | May take longer off after 2–4 h; coronary steal |
| Nitrous Oxide | 104% | Avoid: air embolism, PTX, bowel obstruction, pulm. HTN |
| Sevoflurane | 1.85% | Least pungent; best for peds inhalational induction |
| Drug | MOA | Effect | Bolus | Comment |
|---|---|---|---|---|
| Phenylephrine | Pure α1 | Vasoconstricts | 50–200 mcg | Reflex bradycardia |
| Ephedrine | α1>β1 | ↑ contractility & HR | 5–10 mg | Tachyphylaxis |
| Norepinephrine | α1>β1 | ↑ contractility | 3–6 mcg | Vasopressor of choice in sepsis |
| Epinephrine | α β | ↑ HR, vasoconstricts | "Baby Epi" 5–10 mcg | Also bronchodilator |
| Vasopressin | V1 | Vasoconstricts | 0.5–1 unit | Effective for ACEi/ARB-induced hypotension |
| Drug | MOA | Bolus | Duration (Onset) | Comment |
|---|---|---|---|---|
| Esmolol | β1 selective | 10–30 mg | 10–30 min (1 min) | Esterase degradation |
| Labetalol | α1 < β1=β2 | 5–10 mg | 6 h (2–5 min) | Alpha:beta 1:7 |
| Nitroglycerin | Venous dilation | 10–50 mcg | 3–5 min (1–2 min) | Dilute 1cc in 9cc → 0.5 mg/mL |
| Hydralazine | Arterial | 5–10 mg | 6–12 h (5–15 min) | Rebound tachycardia |
| Drug | Rate | Loading Dose | Comment |
|---|---|---|---|
| Fentanyl | 25–300 mcg/hr | — | Context-sensitive half time |
| Ketamine | 0.3 mg/kg/hr | 0.5 mg/kg bolus | Reduce in elderly (>65) |
| Propofol | 5–200 mcg/kg/min | 1–2 mg/kg | May accumulate |
| Norepinephrine | 2–25 mcg/min | — | Central line recommended |
| Phenylephrine | 20–300 mcg/min | — | Reflex bradycardia; OK through PIV |
| Vasopressin | 0.03–0.04 U/min | — | |
| Lidocaine | 1–4 mg/min | 1–1.5 mg/kg | Caution with hepatic impairment |
| Amiodarone | 0.5–1 mg/min | 150 mg over 10 min | Peripheral up to 3 mg/mL |
| Antibiotic | Dose | Infusion | Redose |
|---|---|---|---|
| Cefazolin | 2 g; 3 g if >120 kg | 5 min | 4 h, redose 8 h |
| Ampicillin-Sulbactam | 3 g | 15–30 min | 2 h, redose 6 h |
| Clindamycin | 600–900 mg | 10–60 min | 6 h, redose 8 h |
| Gentamicin | 1.5 mg/kg | 30–60 min | 24 h |
| Vancomycin | 10–15 mg/kg (max 2 g) | 60 min/g | 24 h |
| Medication | Dose | Comment |
|---|---|---|
| Ketamine IM | 3–7 mg/kg | |
| Ketamine IV (Induction) | 1–2 mg/kg | |
| Propofol Bolus (Induction) | 2–4 mg/kg | Higher doses at younger ages |
| Midazolam PO | 0.5–0.7 mg/kg | Max 20 mg |
| Midazolam IV | 0.05–0.1 mg/kg |
| Medication | Dose | Comment |
|---|---|---|
| Fentanyl IV | 1–2 mcg/kg | Induction dose |
| Morphine IV | 0.1 mg/kg | Avoid in neonates |
| Paracetamol IV/PO | 10–15 mg/kg | Q6h |
| Paracetamol Rectal | 30–40 mg/kg PR | ×1 loading |
| Medication | Dose | Comment |
|---|---|---|
| Suxamethonium | 1.5–2 mg/kg | |
| Rocuronium (Standard) | 0.45–0.6 mg/kg | |
| Rocuronium (RSI) | 1.2 mg/kg | |
| Atracurium | 0.3–0.4 mg/kg | |
| Vecuronium | 0.1 mg/kg |
| Medication | Dose | Comment |
|---|---|---|
| Atropine IV | 10–20 mcg/kg | No minimum dose |
| Epinephrine (resus) | 10 mcg/kg | |
| Adenosine | 0.1 mg/kg (1st); 0.2 mg/kg (2nd) | Max 6 mg / 12 mg |
| Dantrolene | 2.5 mg/kg |
ETT Size
(Age/4) + 4 = uncuffed
−0.5 for cuffed ETT
Ex: 8 yr → 6, use 5.5 cuffed
Blood Volume
- Neonate: 90 ml/kg
- Infant <1 yr: 80 ml/kg
- >1 yr: 70 ml/kg
Hypotension
SBP = 70 + (Age × 2)
Fluid: 10–20 cc/kg × 2–3
4-2-1 Fluid Rule
- 4 ml/kg for first 10 kg
- 2 ml/kg for second 10 kg
- 1 ml/kg for remaining kg
| Age | HR | RR | SBP | DBP |
|---|---|---|---|---|
| <1 | 120–160 | 30–60 | 60–95 | 35–69 |
| 1–3 | 90–140 | 24–40 | 95–105 | 50–65 |
| 3–5 | 75–110 | 18–30 | 95–110 | 50–65 |
| 5–12 | 75–110 | 18–30 | 90–110 | 57–71 |
| 12–16 | 60–90 | 12–16 | 112–130 | 60–80 |
| Medication | Onset | Duration (Epidural) | Duration (Spinal) | Max Dose |
|---|---|---|---|---|
| Bupivacaine 0.125–0.75% | Moderate | 2–5 h | 1–4 h | 2.5 mg/kg plain; 3 mg/kg with epi |
| Lidocaine 1–2% | Fast | 1–2 h | 0.5–1 h | 4.5 mg/kg plain; 7 mg/kg with epi |
Lumbar Epidural: 5–10 cc bupivacaine 0.125%, or 1% lidocaine for rapid onset
Thoracic Epidural: 3–5 cc bupivacaine 0.125%, or 1% lidocaine
Epidural C-Section: 10–15 cc 2% lidocaine with epi + 1 cc bicarb
Spinal C-Section: 10 mg bupivacaine 0.5% with 8% dextrose ± 15–20 mcg fentanyl or 150 mcg IT morphine
Spinal Ortho: 15 mg bupivacaine 0.5% (PF)
Calculating mg dose
Move decimal right 1 place:
0.25% bupivacaine = 2.5 mg/cc
"3–5–7" Rule
- 3 mg/kg bupivacaine, ropivacaine
- 5 mg/kg lidocaine
- 7 mg/kg lidocaine + epi
"IT ICEBALLS" Absorption
IV › Tracheal › Intercostal › Caudal › Epidural › Brachial › Axillary › Leg › SubQ
Local Anesthetic Systemic Toxicity (LAST)
Symptoms
Oral numbness / ear ringing → CNS agitation / seizure → cardiac arrest
ACLS
Standard ACLS with decreased epinephrine (1 mcg/kg boluses)
Intralipid 20%
1.5 cc/kg bolus then 0.25 cc/kg/min — acts as lipid sink
Room Setup — "MS MAIDS"
- Machine
- Suction
- Monitors: EKG, SpO2, BP, ETCO2, temp
- Airway: blade, ETT, oral airway, bougie, LMA, Ambu
- IV: full setup
- Drugs: induction, drips
- Special: fluid warmer, A-line, etc.
Drug Box Contents
- IV Induction: Propofol, Lidocaine, Ketamine
- NMB: Suxamethonium, Rocuronium, Atracurium
- Pressors: Phenylephrine, Ephedrine
- Code: Epinephrine, Atropine
- Antihypertensives: Labetalol, Hydralazine, Esmolol
- Antiemetics: Dexamethasone, Ondansetron
- Analgesia: Paracetamol, Diclofenac, Fentanyl, Morphine
- 1Ambu Bag: Should be in the box on the wall.
- 2O2 Alarm: Turn on machine, unplug green O2 hose, listen for alarm, replug.
- 3O2 Tank: Open key, check >1000 PSI, close key.
- 4Flowmeters: No hypoxic mixture; Nitrous:O2 at 3:1.
- 5Calibrate O2 Sensor: Unscrew knob → 21% room air → Setup/Calibration → O2 sensor → Start.
- 6CO2 Sensor: Breathe into unconnected CO2 tubing, confirm ETCO2 on monitor.
- 7CO2 Absorber: Check color change; capnography should return to baseline.
- 8Leak Test: Occlude circuit, close APL, ensure no pressure drop for 10 sec. Repeat with each new circuit.
- 9Bellows: Remove bag, attach to circuit, flip ventilator on, verify tidal volumes match.
- 10Suction: Must be strong enough to hold to your thumb.
NPO Fasting
| Food | Time |
|---|---|
| Clear liquids | 2 h (peds: until surgery) |
| Breast milk | 3 h |
| Infant formula | 4 h |
| Light meal | 6 h |
| Normal diet | 8 h |
Airway Exam
Face: Beard, trauma, excess tissue?
Mouth: Opening, Mallampati, dentition, jaw subluxation
Neck: Thyromental distance, mobility
ASA Classification
- 1: Normal healthy
- 2: Mild systemic disease
- 3: Severe systemic disease
- 4: Constant threat to life
- 5: Moribund without surgery
- E: Emergent modifier
Dynamic Patient Dosage Calculator
Enter weight and age — all doses update instantly.
Adult Dosages
70 kg| Drug | Formula | Calculated |
|---|
Pediatric Dosages
35 yrs| Drug / Formula | Rule | Calculated |
|---|
LAST — Intralipid 20% Emergency Dosing
Pharmacy Guidelines
Drug references, pharmacy protocols, dispensing notes, and medicine safety documents. Select a file below to open — all documents open in a new tab.
public/guidelines/pharmacy/
Radiology Protocols
Imaging preparation, radiology workflows, MRI/CT protocols, and reporting references. Select a file below to open — all documents open in a new tab.
public/guidelines/radiology/
Other
General clinical documents and supporting files. Select a file below to open — all documents open in a new tab.
public/guidelines/other/
Clinical Calculators
Lightweight calculators built directly into the page. Drug formulas are loaded from public/guidelines/calculators/drugs.json.
public/guidelines/calculators/drugs.json
[
{
"name": "Approved Drug Name",
"category": "Antibiotic / Analgesic / Emergency",
"dose_per_kg": 0,
"unit": "mg",
"max_single_dose": 0,
"frequency": "Every 0 hours",
"concentration_mg": 0,
"concentration_ml": 0,
"notes": "Add Luton-approved clinical notes here."
}
]