Respiratory Flashcards
When does the BTS state that patients should have had NIV started if appropriate? (2)
- 60 mins of ABG
- 120 mins from arrival to hospital
When and how does BTS recommend patients on NIV are reviewed? (3)
- ABG within 2 hours and if worse the specialist review within 30mins
- 4 hour review by ‘appropriate health professional’
- Consultant review within 14 hours
What type of ventilator target strategy does BTS recommend for T2RF?
Pressure targeted (pressure support or pressure control)
What does BTS say about sedation and NIV? (3)
- Only if not suitable for I+V
- Close observation
- 2.5-5.0mg morphine +/- benzo
What ventilator settings does BTS suggest for T2RF?
- I:E 3:1 or higher
- RR 10-15
3 PEEP shouldn’t normally exceed >12cm H20
What does BTS say about T2RF in asthma and NIV?
Do not use
What does BTS recommend re: NIV in those with restrictive lung disease (MND/chest wall disease)
Early NIV, they can deteriorate rapidly. Do not wait for acidosis
What does BTS say with regards to OHS and NIV? (2)
- May need pressures IPAP >30 and EPAP >8
- Fluid overload common - may need diuresis
Describe the step-wise approach to chronic asthma management in adults
- Salbutamol PRN
- Low dose inhaled corticosteroid BD (ICS)
- Long acting B-agonist (LABA) - consider combing with ICS to increase compliance)
- Consider increasing ICS to medium dose or adding leukotriene receptor antagonist (LTRA)
In adults what defines a moderate exacerbation in adults? (2)
- No features of severe
- PEF 50-75%
What features define severe asthma exacerbation in adults? (4)
- PEF 33-50%
- RR 25 or more
- HR 110 or more
4, Unable to complete sentences
What features define life threatening asthma in adults? (10)
- PEF <33%
- <92% SATs
- Pa02 <8 KPA
- ‘normal’ C02
- Reduced GCS
- Exhaustion
- arrhythmia
- Hypotension
- Silent chest
- Cyanosis
What features define ‘near fatal’ asthma exacerbation in adults? (2)
- Hypercapnea
- I+V
Which asthmatics should be admitted? (3)
- Near fatal
- Life threatening
- Severe persisting post tx
Who does BTS suggest maybe suitable for discharge with regards to asthma exacerbation in adults?
If PEF >75% after 1 hour of tx
What does BTS say about steroids and pregnancy in asthma exacerbation?
Do not withhold steroids from women who need them
Which adult asthma exacerbations should see their GP and in what time frame?
All and within 24 hours
In terms of asthma exacerbations in adults who should respiratory follow up and for how long? (2)
- Severe asthma admitted - for one year
- Near fatal - lifetime
In asthma in children what characterises acute severe exacerbations? (5)
- SATS <92%
- PEF 33-50%
- Can’t compete sentences or feed
- HR >140 1-5years
HR >125 > 5 years - RR >40 1-5 years
RR >30 >5 years
What characterises life threatening asthma in children? (7)
SATS <92% + one of:
- Exhaustion
- Confusion
- Hypotension
- Cyanosis
- Decreased resp effort
- Silent chest
What does BTS recommend re: bronchodilators in acute paeds asthma exacerbation? (3)
- Salbutamol via pMDI and spacer
- If poor response or life threatening then add 250mcg ipratropium (<5years) and nebulise
- Consider adding 150mg MgSO4 to each neb in first hour if decreased SATs
What are the recommended paeds doses for steroids by BTS? (3)
Give early and repeat if vomit
1. < 2 years = 10mg
2. 2-5yrs = 20mg
3. >5yrs = 30-40mg
What does BTS recommend re: IV management of asthma? (3)
- IV magnesium sulphate 40mg/kg first line
- Early single bolus IV salbutamol if severe and poor response - 15mcg/kg
- Aminophylline if severe and max dose steroids and bronchodilators
What does BTS suggest as discharge criteria for paeds asthma? (2)
- 3-4 hourly inhalers
- PEF >75%
What follow up should children with asthma attending hospital have? (3)
- Follow up GP 48 hours
- Paeds asthma clinic 1 month
- Life threatening should have paeds resp follow up
What are some of the common symptoms of CO poisoning and which is the most common? (5)
- Headache (most common)
- Nausea/vomiting
- Drowsiness
- SOB
- Chest pain
What COHB levels are:
1. Normal (2)
2. Threshold for tolerance
3. Severe poisoning
- 3% non-smokers and <10% in smokers
- 15%
- 30%
NB late presentations may have normal levels
What is the pathophysiology of CO poisoning?
CO binds to Hb decreasing its O2 carrying capacity and this leads to tissue hypoxia
What is the treatment for CO poisoning? (3)
- 15L 02 - decreases half life from 320 mins to 80mins
- Low BP - resuscitate
- If acidotic bicarbonate
With regards to discharging patients with CO poisoning what must we ensure? (2)
- PHE aware
- House now safe
What are the 3 risk stratification scores that can be used to decide if PEs can be managed as an outpatient and what scores do you need to have? (3+3)
- PESI = class I/II
- sPESI = 0
- Meets Hestia criteria
Aside from the risk stratification score, what other exclusion criteria does BTS have for outpatient management of PEs? (7)
- Unstable
- Active bleeding
- Full dose anticoagulation
- Severe pain
- Social reasons
- CKD 4/5
- HIT in last year
What does BTS recommend for tx or suspected and confirmed PE? (2)
- Rivaroxaban
- Apixiban
With regards to pregnancy and outpatient PE management what do we need to change in our approach? (2)
- PESI/sPESI not validated
- Can’t used DOACS/VKAs - LMWH
If patients have malignancy what should we do differently when deciding outpatient management? (2)
- Hestia criteria can be used
- Needs consultant review due to increased 30 day mortality
With regards to PE and whether we can manage as an outpatient, what difference does the fact a patient is an IV drug user make?
They should be admitted
With regards to PE and whether we can manage as an outpatient, what difference does the fact a patient is an IV drug user make?
They should be admitted