Adult dosages Flashcards
Corticosteroids
Pt with severe asthma attack
or
severe allergy/anapylaxis
Hydrocortisone:
200-500mg IVI slowly
(5mg/kg)
Salbutamol
Premature/obstructed labour/prolapsed cord
Maintenance infusion?
Dilute
2 mg [4 x 500 mcg/ml] into 200 ml N/S (10mcg/ml solution)
Start with 10 mcg/min.
May increase by 10 mcg/min every 10 min to a max of 45 mcg/min
Lorazepam
Pt with active convulsions
Initial dose?
If not terminated by intial dose?
Maximum dose?

2-4mg slowly IVI
If required an additional 4mg IVI may be administered after 10 minutes
Titrate to effect (use the lowest effective dosage)
Maximum 8mg/12hours
Lignocaine Hydrochloride (Lidocaine) (Systemic)
Endotracheal Intubation Sequence
(for raised ICP)
Specifically indicated for patients who may already have an element of raised intracranial pressure, the addition to which would compromise the patient
administer 1.5mg/kg 3 minutes before intubation
Thiamine Hydrochloride
Pt with suspected Wernicke’s encephalopathy
100 mg IVI bolus, slowly
Magnesium Sulphate
Pt in cardiac arrest unresponsive to conventional therapy
1-2g (2 to 4ml of a 50% solution)
Dilute 1g/2ml vial to 10ml sterile water = 10% solution
Give slowly, not exceeding 1.5ml/min, with continuous careful monitoring
Salbutamol
Pt in obstructed labour
IV Bolus dose and rate?
Slow IV
100-250 mcg IV
Administer
1ml/min until:
- Total of 250mcg/10min has been given, i.e. 10ml
- Mother’s heart rate >120bpm
- Contraction cease
Dextrose 50%
Pt in hypoglycemic coma
10g (20ml of a 50% solution) slowly IVI
Repeat
every 5 minutes should blood glucose remain
First give 100mg Thiamine if available and indicated
Glyceryl Trinitrate
Pt with cardiac chest pain
One tablet sublingual
OR
one spray (without inhaling) onto oral mucosa
(preferably sublingual)
Repeat
every 5 minutes until pain is relieved, or max dose taken
Maximum of 3 sprays/tablets
- Terminate administration if systolic blood pressure:
- -Decreased by more than 10% in a normotensive patient -Decreases by more than 30% in a hypertensive patient -Measures lower than 90mmHg
Lignocaine Hydrochloride (Lidocaine) (Systemic)
Pt with chest pains, BP 80/60mmHg, HR 92, with arrhythmia
loading dose?
When must the bolus dose be terminated?

Loading dose:
1mg/kg slowly IVI
Bolus doses must be terminated when either:
- A maximum of 3mg/kg has been administered, or
- The blood pressure drops by >10%, or
- Ventricular arrhythmia ceases, or -
Signs of toxicity develop
Thiamine Hydrochloride
Pt with suspected thiamine deficiency (eg alcoholims, malnourishment)
Dose prior IV 50% Dextrose administration
100 mg IVI bolus, slowly
Atropine Sulphate
Pt with refractory symptomatic bradycardia
First dose?
0.5mg IVI push
Midazolam
- Adult dose -
Maintenance Infusion for a transfer of a 100kg intubated pt on mechanical ventilator
How many mls/hour if using 200mls NS?
(maximum recommended dose)
0.03mg/kg/hr-0.1mg/kg/hr
VR = SR/SS x VS
VR=(0.1mgx100)/15mg x 200ml
VR=133mls/hr
when used in combination with narcotic analgesics
Adrenaline
Pt in cardiac arrest
Intravenous:
1 mg IVI push
Tracheal:
2 mg diluted with 10 ml of water for injection preferred
Repeat every 3-5 minutes
Flumazenil
Pt overdosed on Valium (benzodiazepine) and is only responding to pain and breathing at a rate of 10/min.
Intitial dose?

Initial bolus:
0.2mg slowly IVI over 15 seconds
Magnesium Sulphate
Pt with convulsions in toxaemia of pregnancy
Infusion dose and rate?
3g in 200ml 0.9% sodium chloride solution
at a rate not exceeding 3ml/min
Lignocaine Hydrochloride (Lidocaine) (Systemic)
80kg male pt with stable BP, no chest pain, HR of 180 and the following ECG rhythm. Amiodarone is not available
loading dose?
When must bolus dose be terminated?

Loading dose:
1mg/kg slowly IVI
Bolus doses must be terminated when either:
- A maximum of 3mg/kg has been administered, or
- The blood pressure drops by >10%, or
- Ventricular arrhythmia ceases, or
- Signs of toxicity develop
Sodium Bicarbonate 8.5%
Pt in cardiac arrest due to suspected cocaine overdose
1ml/kg (8.5%) slowly IVI with free flowing line
Lignocaine Hydrochloride (Lidocaine) (Systemic)
Pt in cardiac arrest with the following arrhythmia.
(Amiodarone is not available)
Bolus dose?
Repeat dose?
Maxium total dose?

Administer a bolus dose of
1mg/kg IVI/IO push
0.5mg/kg IVI/IO (or 1 mg/kg ET) every 5 minutes
Maximumm total bolus dose
3 mg/kg IVI
Following successful defibrillation, follow with maintenance infusion
Naloxone Hydrochloride
- Adult dose-
- 0.4mg slowly IVI/IMI (0.1mg/kg)
- Repeat every 5 minutes, up to 2mg
- Should 2mg fail to elicit the desired response, then overdose with agents other than opiods should be considered
Flumazenil
Pt overdosed on Valium (benzodiazepine), responds only to pain and has a RR 10/min. You have already administered a bolus of 0.2mg IVI
Repeat dose?
(Include max dose that can be administered)

Repeat:
0.1mg at 1 minute intervals
Max dose:
1mg
Metoclopramide Monohydrochloride
Pt that is feeling nauseous and is vomitting

>60 kg:
10 mg slowly IVI/IMI
< 60 kg:
5 mg slowly IVI/IMI
Calcium Chloride 10%
Pt with Verapamil (calcium channel blocker) overdose

10ml of calcium chloride 10% solution, slowly IVI
If being administered pre-arrest, administer at 1ml/min
Magnesium Sulphate
Pregnant female convulsing (toxemia of pregnancy)
Bolus dose?

2-4g of a 10% solution given very slowly,
with careful monitoring not exceeding 1.5ml/min
(10% solution is obtained by diluting the 1g/2ml vial to 10ml with sterile water)
Adenosine
Pt with otherwise stable signs and symptoms with the following ECG (HR 170)

Rapid 6mg IV push
(followed immediately by rapid 20mls IV push)
12mg IV push if no response after 2minutes
12mg IV push may be considered if no response after 2minutes
Magnesium Sulphate
Pt in acute severe asthma unresponsive to conventional therapy
1-2g (2 to 4ml of a 50% solution)
Dilute 1g/2ml vial to 10ml sterile water = 10% solution
Give slowly, not exceeding 1.5ml/min, with continuous careful monitoring
Midazolam
Induction
1mg/15 to 30 seconds IVI
Sodium Bicarbonate 8.5%
Pt with suspected Amitriptyline overdose, decreased LOC, systolic BP of 75mmHg
1ml/kg (8.5%) slowly IVI with free flowing line
Adrenaline
- Adult Dose -
Symptomatic Bradycardia (SBP
- IV infusion 2-10 mcg/min
- Titrate to effect
Diazepam
- Adult dose-
Convulsions when IV access is unsuccessfull
Rectally:
10mg (maximum 20mg)
Glucagon
- Adult dose-
Severe anaphylactic reaction

- 1-2mg every 5 min IM or
- slow IV if unresponsive to adrenaline, & especially if on beta blockers
Sodium Bicarbonate 8.5%
- Adult dose-
105 kg trapped pt who is about to be relased from under a truck
How many mls?
1ml/kg (8.5%) slowly IVI with free flowing line
105 ml
Glucagon
Calcium Channel blocker/beta blocker OD
Intial dose?
and
Follow up infusion rate?
3mg IV initially as adjuvant treatment
followed by 3mg/hour infusion
Amiodarone Hydrochloride
Pt in cardiac arrest with VF refractory to defibrillation or pulses VT

300 mg IVI as a rapid bolus
Consider additional dose of
150 mg in 3 to 5 minutes if VF persists
Lignocaine Hydrochloride (Lidocaine) (Systemic)
65 yrs old male in cardiac arrest with the following arrhythmia.
(Amiodarone is not available. and you are not able to establish IV access)
Bolus dose through ETT?

2 mg/kg ET as last resort
Diazepam
- IV Adult dose-
Convulsions
- 5mg/min slowly IVI (0.15mg/kg)
- Repeat every 2-5 minutes
- Titrate to effect (use the lowest effective dosage Maximum 20 mg
Glucagon
Pt in hypoglycemic coma and you are unable to obtain IV access to administer 50% Dextrose.

1mg IMI/IVI/SC
IMI is preferred route
Midazolam
Maintenance Infusion for sedation?
0.03mg/kg/hr-0.1mg/kg/hr
when used in combination with narcotic analgesics
Midazolam
Pt presenting with active convulsions
0.15mg/kg slowly IVI (maximum 0.3mg/kg)
IMI not recommended as first line route - absorption too slow
ONLY give IMI if no IV access available
0.15mg/kg IMI
(maximum 0.3mg/kg)
Clopidogrel
Pt with true aspirin allergy with suspected AMI
Administer
300mg orally,
i.e. four of the 75mg tablets
Lignocaine Hydrochloride (Lidocaine) (Systemic)
Stable VT/Complex Ventricular Ectopy with Myocardial Ischaemia or causing haemodynamic compromise -
Maintenance infusion after restoration of stable rhythm?
1-4mg/min (20-50mcg/kg/min)
upon restoration of a stable rhythm
Reappearance of arrhythmia during a constant infusion of lignocaine should be treated with
0.5mg/kg slow IVI bolus dose,
and an increase in the infusion rate in incremental doses
(maximal rate = 4mg/min)
Adrenaline
Pt with Anaphylaxis
0.3mg (1:1000) undiluted (anterolateral thigh)
Repeat :
every 15-20 minutes
Amiodarone
Stable pt with VT/SVT and HR180
Inital dose?
Follow up infusion?
Maximum cummulative dose?

150 mg IVI over 10 minutes (15mg/min),
followed by infusion:
slow IVI of 1 mg/minute (360 mg over 6 hours)
Maximum cumulative dose
2.2 g IV/24 hours
Salbutamol
Pt with acute bronchospasm
IV infusion dose and rate?
Total dose?
250 mcg/10min
Administer 1ml/min over 10 min
Total of
250mcg/10 min
Adrenaline
- Adult Dose -
75 kg pt in severe life-threatening asthma attack
Initial dose?
0.01mg/kg divided into 3 doses of 0.3mg
0.3mg undiluted (1:1000)
Thiamine Hydrochloride
Pt with suspected Wernicke’s encephalopathy
100 mg IVI bolus, slowly
Midazolam
Sedation
1mg/min slowly IVI
titrate to effect
Diazepam
Sedation
1mg every 30 seconds IV
titrated to effect when necessary
Lignocaine Hydrochloride (Lidocaine) (Systemic)
Pt with Stable VT/Complex Ventricular Ectopy with Myocardial Ischaemia or causing haemodynamic compromise
loading dose?
Loading dose:
1mg/kg slowly IVI
Atropine Sulphate
Refractory Symptomatic Bradycardia after first dose
What is the next and maximum dose?
Repeat:
0.5-1mg every 3 to 5 minutes
Maximum:
3mg (0.04mg/kg) = total vagolytic dose
Furosemide
Pt with pulmonary oedema
0.5mg - 1mg/kg IVI slowly
over 1-2minutes
Promethazine
Pt with severe anaphylaxis

25mg deep IMI or
slowly IVI after 10-fold dilution with water for injection
Atropine Sulphate
Organophosphate poisoning
0.5-2.5mg IVI
Repeat:
every 4 minutes until atropinization occurs (decreased bronchial secretions is single most reliable factor)
Titrate to effect
No absolute maximum dose
Morphine Sulphate
Pt requiring pain management
Dilute to concentration of 1mg/ml and titrate to effect at
1mg/30 seconds slowly IVI
Titrate to effect
Adrenaline
Pt with obstructing laryngeal oedema

Nebulization:
Initiate with 1 ml of 1 : 1000 + 4 ml of N/S
If necessary increase
2 - 4 mg adrenaline diluted with 5 ml N/S
