Emergency Medicine Flashcards

1
Q

How do you measure for the size of a C-spine Collar?

A

From chin to where the trapezius enters the neck

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2
Q

Where are the major areas that bleeding can occur?

A

“on the floor or four more”

  • external bleeding
  • abdomen
  • pelvis
  • thorax
  • long bones
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3
Q

Name two causes of non-trauma related pupil dilation and when should you suspect these?

A

Anisocoria
or
cataracts

*suspect when GCS 15

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4
Q

What is the ratio of blood products given?

A

RBCS: 4: FFP: 2: Platelets:1

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5
Q

List three reasons why a patient may have impaired clotting ability in trauma?

A
  1. Reduction in clotting factors due to intial clot/ loss of blood
  2. dilution from fluids
  3. Hypothermia
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6
Q

In major trauma why is fluids not advised, but instead just blood?

A
  1. causes haemodilution
  2. Sudden increase in blood pressure can dislodge the first (and best) clot
  3. Hypothermia - liquids are cool
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7
Q

Which drug should be given to all patients requiring transfusion in trauma and what rate is it given at?

A

Tranexamic acid 1g over 10 minutes

*must be standard within 3 hours of bleeding

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8
Q

List some features that would suggest someone has received burns to their airway following a fire:

A

Hoarseness of voice / change to voice

Soot in sputum/ around nose

Burns to face/ neck

Cough

Acute inflammatory changes to oropharynx

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9
Q

What are the two major complications of burns to the lungs, and how do you test for one of them?

A

Direct lung injury due to hot air

Carbon monoxide poisoning

*Need an ABG to detect carboxyhemoglobin

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10
Q

With regards to burns, what percentage of the body does the chest and abdomen take up?

how much is one leg?

and how much is the perineum?

A

Chest and abdomen = 18%

One leg = 18%
(Front and back)

Arm: 9%
(front and back)

Perineum = 1%

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11
Q

Out with the rules of 9, how else can you estimate the amount of burns someone has?

A

Patient palmar surface.
= 1%

so how many palm surfaces of their own palm have they burnt?

Lund and Browder chart
- used for children as more accurate

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12
Q

What is the fluid requirements for burns?

A

Anything over 2nd degree burns with >15% burns or 10% with smoke inhalation.

Parkland’s formula:
- Weight (kg) x % of burn x 4

*the first half should be given over the first 8 hours from burn. (not from presentation)
the remainder should be given over the next 16 hours.

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13
Q

What is the most accurate way of working out burn surface area and when is it used?

A

Lund and Browder

- used in paediatrics

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14
Q

List some causes of coma:

A

Coma with focal or Lateralizing

  • CVA
  • Trauma
  • Space occupying lesion

Coma without focal or lateralizing but meningism

  • meningitis
  • Subarachnoid

Coma without any features:

  • Toxins (including insulin)
  • Endocrine (thyroid, Addison’s)
  • Metabolic (Hyponatruamia, hypoglycaemia)
  • Organ failure
  • Seizure
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15
Q

Highlight the indications for an urgent CT head:

List some for CT head within 8 hours

A
GCS <13 
GCS <15 for over 2 hours 
Open or depressed skull fracture or evidence of skull fracture 
Seizure 
Focal neurology 
>1 episode of vomiting 

CT within 8 hours:

  • > 65 years or older
  • clotting disorders
  • high impact mechanism
  • > 30 mins retrograde amnesia
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16
Q

Falls are very common in the elderly 1/3 >65 will fall. List some key examinations that should be conducted when someone falls:

A
  • timed up and go test
  • 180 spine test

Standing/ sitting BP

Gait Examination

Proprioception and Romberg’s test
- cerebellar examination

Ocular Examination and visual acuity

PR examination
- blood loss - hypovolemia

*examine for pressure sores following a long period on the ground

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17
Q

List the main investigations needed for every patient that presents with collaspe and list some other that are needed:

A

ECG
BM
Lying/ standing blood pressure

Additional: 
Bloods:
- FBC 
- U&amp;Es 
- CK (long lie) 
- CRP - infection? 
- Troponin if M.I 

Orifies:
- urine dip (infection)

X-rays:

  • x-ray of any area damaged
  • Head CT?
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18
Q

What are the key features of delirium?

A

Recent onset fluctuating awareness

Impairment of memory and attention

Disorganised thinking

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19
Q

What are some of the common causes of delirium along with a pneumonic?

A

SMASHED

S - Sepsis 
M - Meningitis / Mental illness 
A - Alcohol withdrawal 
S - Seizures / stimulans 
H - Hyper's (thyroidism, calcium) / Hypo's 
E - Electrolytes / Encephalopathy 
D - Drugs
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20
Q

What important aspects from the history do you want to establish in someone presenting with delerium?

A

When it started

Previous level of intellect

Drug/ Alcohol history

Functional status

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21
Q

Which patients who present with acute urinary retention should be admitted to urology?

A

Residual volume >1.5L

Abnormal U&Es

Frank haematuria or clots

Frial/ elderly who can’t manage their catheter

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22
Q

What is the act called when someone lacks capacity? If there is an emergency and treatment is needed to save the person’s life but they lack capacity then what should be done? contrast this to a non-life or death emergency:

A

Adults with incapacity act 2000

Life or death or prevention of significant deterioration:
- emergency treatment can be given without capacity under common law

In non - life or death a certificate of incapacity must be issued.

  • they then rely on proxy to treat.
  • if no proxy then the doctor in charge may make the decision
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23
Q

Using the adults with incapacity act 2000, If there is disagreement between the attending doctor and the proxy of the patient, what must be done?

A

A second medical opinion from another doctor should be sought. If they agree then treatment can go ahead.
If they disagree then the attending doctor needs submit a request to courts - in that meantime only life saving treatment can be given

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24
Q

Under which act are you under to report any suspicion of harm or impeding harm to an adult who is unable to safe guard themselves? and what must you do?

A

Adult Support and Protection Act 2007

  • Contact senior
  • Notify social work
  • Complete AP1 form
  • Datix incident
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25
Q

What are the adverse features that are seen in the peri-arrest situation which should prompt further management?

A

Hypotension <90mmHg

Syncope

M.I signs on ECG

Heart Failure

26
Q

If a patient is in a tachy arryithmia and unstable what should the management be?

A

Synchronised Cardioversion*3 attempts

if still unstable Amiodarone + re-shock

  • 300mg
  • 900mg over 24 hours
27
Q

What bloods and investigations do you want into a seizure?

A
FBC 
U&Es 
Glucose 
Calcium 
LFTs 
ABG
Antiepileptic drug/ AED levels** 

EEG
- this can give diagnostic info and assess if they are still seizing

Head imaging:
- head CT
or
- Head MRI

*Store for analysis later

28
Q

What are the main factors determining how a pneumothorax is treated i.e. whether a chest drain is used or not?

A

Age >50
Underlying lung conditions
Signs of breathlessness
Size (>2cm will generally be treated)

**note bilateral or hemodynamically compromised pneumothorax will also be treated with chest drains

29
Q

What are the options for long term management of pneumothorax?

A

Surgical pleural desis

Chemical pleural desis for those unable to undergo surgery
- Talc

30
Q

list some causes of central cyanosis:

A
Severe respiratory illness 
Upper airway obstruction 
Congenital cyanotic heart disease 
Eisenmenger's syndrome 
High Altitude 
Methaemoglobinaemia  

*methaemoglobinaemia will present with central cyanosis but normal PaO2 pressures (as oxygen dissolved in blood is normal)

31
Q

what is the most common cardiac arrest to occur in anaphylaxis?

A

PEA

32
Q

List the immediate management of anaphylaxis and list the monitoring of it:

A

Call for help
Lie patient flat
Raise legs

Adrenaline 1:1000 IM
*repeat after 5mins

*dose is 500MICROgrams
Secure Airway
High flow oxygen
IV access - fluid challenge

Chloraphenamine
Hydrocortisone

Monitor:

  • BP
  • Oxygen sats
  • ECG
33
Q

High light the key areas of management of DKA:

A
  1. IV fluids and Insuliin
  2. Monitoring and correct of: KCl, ABG and Glucose
  3. Careful monitoring of fluid output
  4. Screen for cause - septic screen
  5. Monitor ECG

*long acting insulin may be continued but short acting should be stopped.

34
Q

What is needed in the diagnostic criteria for HHS? what is the management and some important points to remember:

A
Severe hyperglycemia 
Hyperosmolar state 
\+/- 
Acidosis 
\+/- 
Ketones 

Management:

  • IV fluids
  • Insulin
  • LMWH
  • Monitoring of electrolytes
  • care fluid resuscitation should take place. - usually frail and underlying heart disease
  • slow reduction in glucose to prevent cerebral oedema
35
Q

Outline the resuscitation of a person with cardiac arrest due to hypothermia

A
  • no defibrillation or inotropic drugs if < 30degrees
  • remove wet cloths
  • Rewarm as quickly as possible (Warmed IV fluids, blankets, Bair hugger)
  • Resuscitation drugs given at x2 normal limit (8-10mins)
  • long time on CPR.
  • *you can’t be cold and dead, only warm and dead
36
Q

If someone is in moderate - to severe pain (4/10) when should they have revaluation of pain done?

A

Every 120 minutes

37
Q

What is ketamine and what are some condraindications to its use?

A

Non - competitive NMDA receptor blocker

Contraindicated in:

  • head trauma
  • Stroke
  • Eclampsia/ pre-eclampsia
  • severe HTN
38
Q

Where are the potential sites for IO insertion?

A

Proximal humerus

Proximal tibia

Distal tibia

39
Q

What is the functioning of the Adult Support and Protection Act 2007?

And what test can be done to determine if someone is a vulnerable adult?

A

The act is designed to protect and benefit adults at risk of being harmed who are unable to safeguard themselves, their properties or rights.
- this harm may be from others or themselves

  • means as a doctor you must report any suspected or impending harm, using a AP1 form

3 point test:
- Is the person unable to safeguard themselve or property?

  • Are they at an increased risk of harm as a result?
  • Physical/ Mental/ Disability which makes them more at risk?
40
Q

List some risk factors for domestic violence:

A
Female 
Young Age 
Pregnant 
Substance abuse 
Mental illness 
Stalking
41
Q

When finding out about domestic violence, open ended questions are first used then more direct. What is the mnemonic for knowing the questions to ask?

A

HARK

  • Humiliation: Emotional abuse
  • Afraid: Physical attack / threatening
  • Rape
  • Kick: Physical attack
42
Q

If domestic violence is determined, what actions as a junior doctor should you take immediately?

A

Meticulously document

Report to consultant

Safeguard - especially if children at home

Offer contact regarding police

Offer - to alert GP

43
Q

What advice can be given to patients sufferring form domestic violence?

A

Help identify a safe place

Contact support agencies

  • Scottish Woman’s aid
  • Respect
  • Men’s advice line

Discuss packing a bag

44
Q

Highlight some drugs which can cause mydriasis:

A

Benzodiazepines

Alcohol

Anticholinergics
- TCAs

Cocaine

Amphetamines

MDMA

45
Q

List some differentials for toxidromes that cause hyperthermia:

A

Serotonin syndrome
Anticholinergic syndrome
Neuroleptic malignant syndrome
Malignant hyperthermia

46
Q

What is the infusion rate of naxlone and how should they be monitored?

A

Infuse 60% of the total dose over 1 hour.

Observations over 6 hours, with checks every 15mins.

  • BP
  • HR
  • Respiratory rate
  • oxygen sats
  • GCS
47
Q

What are the indications for NAC in paracetamol overdose?

A

Levels above the nomogram >4 hours after ingestion

> 150mg/kg

Staggered doses

Biochemical or clinical evidence of liver damage

48
Q

Highlight the different clinical features of paracetamol overdose:

A

Stage 1 (0-24 hours)

  • N&V
  • lethargy
  • Asymptomatic
  • normal LFTs

Stage 2: (1-3 days)

  • RUQ pain
  • Hepatomegaly
  • abnormal LFTs

Stage 3: (3-4 days)

  • Jaundice
  • encephalopathy
  • hypoglycemia
  • Coagulation defects
  • death
  • Elevated LFTs +++

Stage 4: (4 days - 6 weeks)
- recovery

49
Q

What is the management of calcium channel blocker overdoses?

A

IV fluids

Gastric lavage

Atropine

Calcium gluconate

High dose Insulin - Euglycaemia therapy (HIET)

50
Q

Name a tool which can be used in the ED to assess suicidal risk?

A

SADPERSON

51
Q

When can the C- collar be taken off in a patient without Imaging?

A

Painfree
GCS 15
No neurological signs
No midline tenderness

*check movements once off. If problem rotation will usually be most compromised.

52
Q

What are the Jackson model of burns?

A

Coagulation zone:

  • most damage
  • irreversible
  • tissue death due to coagulation

Stasis zone:

  • Decreased tissue perfusion
  • potentially salvable

Hyperaemia zone:
- Tissue perfusion is increased

53
Q

Highlight the degree of burns and some of the features associated with them:

A

1st degree / Superficial:

  • epidermal layer
  • painful
  • blanches on pressure
  • blister formation

2nd degree / Partial thickness:

  • superficial partial thickness
  • deep partial thickness
  • both involve epidermis and dermis
  • both painful

3rd degree / Full thickness

  • extends into subcutaneous tissue
  • Painless lesion
  • white to grey to black
  • non blanching

4th degree:
- involves underlying muscle and bone

54
Q

Outline the details between 2nd degree/ partial thickness burns:

A

Superficial partial thickness:

  • epidermis and portions of dermis
  • painful weeping lesion
  • blanches with pressure
  • painful

Deep partial thickness:

  • painful on pressure
  • wet/ dry or pale
  • sluggish blanching
55
Q

At what level will a burn lesion no longer be painful?

A

3rd degree

56
Q

What are some complications of burns to be aware of?

A

Infections
- especially pseudomonas infection

Rhabdomyolysis

Compartment syndrome
- which can occur across the chest

Fluid loss/ electrolyte loss

57
Q

In burns, how much if the front and back of the head in percentages? and how much is the front and back of an arm?

A

Face is 4.5% with the whole head making 9%

Each arm side is 4.5% with entire arm being 9%

58
Q

Which circumstances would you refer to a burns unit?

A

> 10% TBSA in an adult

> 3% TBSA in a child

Over major joints

Circumferential burns

Chemical or electrical burns

Pregnancy

On the face or genitals

59
Q

What investigations do you want in a burns patient?

A

ABCDE
*check for other injuries such as C-spine

Bloods:

  • FBC
  • U&Es
  • Coagulation
  • Carboxyhaemoglobin - ABG
  • Glucose

Orifices:
- Catheterise if possible - fluid assessment is essential

60
Q

What is your immediate management of a burns patient?

A

ABCDE

A - secure airway. May require airway support
*early intubation may be required

B - check for circumferential burns
*bronchospasm may occur which salbutamol is needed

C

  • IV fluids
  • Catheter

D

  • Tetanus prophylaxis
  • IV morphine

E

  • Cool the wound with saline
  • Cling film or sterile stressing
  • assess degree of burn
  • contact burns unit or plastics