miscellaneous facts Flashcards
Where in the oesophagus is a temperature probe most accurate
Distal 1/3
in upper third its affected by airway gas flow
Which is faster a thermadot chemical temperature or mercury
Thermadot
What does a pulmonary artery catheter use to measure temperature
Thermistor
Do you need high or low rates of urine flow for accurate core bladder temp
High
Does MDMA cause hepatotoxicity
Yes - acute hep to fulminant failure
Do you get high or low sodium with MDMA
Low - it releases ADH, they get water intoxicated and sweat sodium
Do you get hyper or hypotension with MDMA
Hyper - sympathetic stimultation
Hypo or hyperthemia with MDMA
Hyperthermia
What are the independent variables or the Steward acid bases hypothesis
PaCO2
Atot (weak acids)
SID
(Hydrogen ions and bicarb are not)
Is there good evidence to support restritie strategies in both child and adults
Yes to both
Is CO2 elimation proportion to minute volume or alveolar MV,
Alveolar - total takes dead space
Eqn for plateau pressure
Ppeak - Presistance
which MEN syndromes causes hypercalcaemia
I and IIa (not IIB)
does hyperthyroidism cause hypercalcaemia
yes
Can theophylline cause hypercalcaemia
yes
Can loop diuretics cause hypercalcaemia
no
Which trial advocated tight sugar controls
Leuven studies
Which trials did not advocate tight sugar control
NICE sugar
VISEP
What is the range of BM needed
4-10
Normal R time
8-12 minutes
What does R time measure
Initial fibrin formation rate
Normal K time
2-4 minutes when curve amplitude is 20mm
What does K time measure
Fibrin accumation and cross link
Normal a slope
60-70 degrees between R and K
A slope meaning
Speed of clot formation
Maximum amplitude in TEG normal
60-70mm
What does max amp mean
Strength of clot
LY30 meaning
%lysis of clot 30 min after max amp
Normal LY30%
<7.5%
What does LY30 measure
Loss of clot integrity to lysis./ Reflects fibrinolysis
What decreases the a angle
Thrombocytopenia
Hypofibrinogenaemia
What is A60, its normal value and its meaning
Amplitude 60 minutes after MA
Amplitude of 5mm
Represents clot retraction lysis
Does R time represent time to solid clot fomration
NO - the time to fibrin formation
Is the Revised Trauma Score anatomical or physiological
Physiological
Compare to AIS which is anatomical regions, and ISS which sums these scores
Components of TRISS score
ISS
RTS
Age index
Mechanism of injury
Pleural fluid cut off for trans/exudates
30g/dL
Causes of low glucose in pleural fluid
Infection
RA
Malignancy
SLE
Lights criteria
Fluid is exudate if:
Pleural : serum protein > 0.5
Pleura : serum LDH > 0.6
Pleural fluid is more than 2/3rd upper limit of normal serum LDH
Is sex on the APACHE II score
no
Is Ca on the APACHE II score
no
Is MAP on the APACHE II score
yes (not systolic)
Energy for defib a child
4J /jkg
Estimated weight eqn for child
infant (0.5xage in months)+4
1 - 5 yrs (2xage)+8
6-12 (3 xage) +7
Amiodarone dose for a child VT
5mg/kg
ETT child eqn
(age/4)+4
which comes first in necrotising fascitits, skin change or pain
pain by 24-48hrs
Do you need muscle involement for nec fasc diagnosis
no
Is nec fasc classified by location
no
Types of nec fasc
1 - most common - polymicrobial , g pos, neg, anaerobes
2 - group A strep alone or with s aureus
3 - rare, gram neg, vibrio species
4 - fungal (candida) rare, immunocomprimised.burns
Which type of nec fasc is associated with TSS
Type 2
