Ventilator Flashcards
(63 cards)
Rise time
Time to reach the target inspiratory pressure and the adjustable inspiratory time.
Muscle fatigue can be expected if pressure time index is
More than 0.15
VILI can be seen at Transpulmonary pressures more than
30 to 35 CM h2o
Safe fio2 values
40% safe for prolonged periods
Arterial po2 more than 120-130mm hg may produce systemic toxicity
Two new modes of ventilation
Proportional assist ventilation - PAV
Neurally adjusted ventilator assistance - NAVA
4 Pulmonary infectious complications in mech ventilator patients
1- compromised natural Glottic closure
2- ET tube impairs cough reflex portal for pathogens to enter lungs
3- Airways and parenchymal injury
4- ICU environment and use of antibiotics and many sick patients in close proximity
Care bundles
Hand washing, elevated head end of bed, oral care with chlorhexidine, appropriate antibiotics
3goals for ventilation setting
Enough PEEP to recruit alveoli
Avoidance of peep -TV combination that causes over distension
Limiting TV to physiological range
Most common etiology of SVC syndrome
bronchogenic carcinoma and lymphoma
Agents used for pleurodesis
Talc most common
Tetracycline, bleomycin, iodine povidone, nitrogen mustard, corynebacterium parvum, silver nitrate
Young’s syndrome
Bronchiectasis, sinusitis, infertility(azoospermia)
Kartagener syndrome
Primary culinary dyskinesia, situs inversus totalis
Primary ciliary dyskinesia
HrCt shows lower lobe involvement more and sparing of upper lobe
Lady windermere syndrome
Women suppress cough voluntarily causing retention of secretions. M/C a/w MAC infections.
Thoracoscopy was introduced by
Hans-Christian Jacobaeus
Semirigid pleuroscope dimensions
Proximal 22 cm is stiff, distal 5 cm bendable, angulation of 160 and 130 degrees, outer diameter of shaft is 7mm and working channel diameter of 2.8 mm
Schramel and co workers pneumothorax grade
1-normal lung
2-pleuropulmonary adhesions
3-bullae and blebs <2cm in diameter
4-numerous large bullae >2cm in diameter
Will Rogers Phenomenon
Seen in PET CT, patients that move from one stage to another can improve survival rates in both the stages
RPGN identified D/D
Anca associated vasculitis, idiopathic Pauci immune glomerulonephritis, SLE, good pasture syndrome, post infectious glomerulonephritis, IgA nephropathy, Henoch -schonlein purpura, essential cryoglobulinemia, MPGN
Deoxyspergualin
Antitumour and Immunosupressant used in refractory ANCA associated vasculitis
Clinical antisynthetase syndrome
AB to aminoacyl transferase RNA synthetases
Co existence of myositis, diffuse lung disease and arthritis.
M/c is jo 1
Csf ZN stain
4-40%
CSF L/J C/S
25-70%
CSF gene xpert sensitivity specificity
80.5%, 97.8% respectively