general internal medicine Flashcards
What is Kusmauls sign?
What commonly causes Kusmauls sign?
An increase of JVP on inspiration.
This represents a heart that is unable to accomidate the increased venous return that accompanies inspiratory decrease in intrathoracic pressure
Kusumauls sign causes–> constrictive pericarditis (classic cause)
Common cause–> right sided heart failure
other causes of kusmauls sign–> myocardial restrictive disease (tricuspid stenosis, amyloidosis, superior vena cava syndrome)
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What is cor pulmonale?
altered structure/ function of the right ventricle that results from pulmonary hypertension caused by
1) diseases of the lung (COPD, pulmonary
2) vasculature (idiopathic pulmonary hypertension)
3) upper airways (OSA)
4) chest wall (kyphoscoliosis)
Cor pulmonale DOES NOT INCLUDE right heart failure due to left heart failure ( which is the most common cause of heart failure)
What is central venous pressure and how do you measure it?
Central venous pressure (cm H2O)= right atrial pressure is an indirect estimate of the pulmonary wedge pressure = pressure in pulmonary arterials
–> which is an indirect measure of the pressure in the left ventricle
CVP= JVP +5
JVP >/= 3 suggests and elevated CVP
–> the 5 cm in that equation is the distance from the angle of louie to the middle of the right atrium where venous pressure is 0 by convention
You can measure CVP by locating the JVP and adding 5cm from the angle of louie
What is the JVP waveform?
What do each of the waves mean?
What do differences in each wave mean?
a wave= right atrial contraction
–> occurs right before the first heart sound
x= atrial relaxation
c= bulging of tricuspid valve into right atrium during ventricular isovolumetric contraction
x1= atrial relaxation after ventricular isovolumetric contraction ( most significant decrease)
v= distention of the right atrium with filling
y= emptying of right atrium after opening of the tricuspid valve
Table 11-1 Abnormalities of the Venous Waveforms
Waveform Cardiac Condition
Absent a wave Atrial fibrillation, sinus tachycardia
Flutter waves Atrial flutter
Prominent a waves First-degree atrioventricular block
Large a waves Tricuspid stenosis, right atrial myxoma, pulmonary hypertension, pulmonic stenosis
Cannon a waves Atrioventricular dissociation, ventricular tachycardia
Absent x descent Tricuspid regurgitation
Prominent x descent Conditions causing enlarged a waves
Large cv waves Tricuspid regurgitation, constrictive pericarditis
Slow y descent Tricuspid stenosis, right atrial myxoma
Rapid y descent Constrictive pericarditis, severe right heart failure, tricuspid regurgitation, atrial septal defect
Absent y descent Cardiac tamponade
What is the definition of pulmonary hypertension?
Increased (> 25 mmHg or higher) blood pressure in the pulmonary arteries
normal pulmonary blood pressure at rest is between 5 and 20mmHg
ddx
Pulmonary Hypertension is often missed because the similarity in the presentation to right sided heart failure, coronary artery disesae, liver disease and Budd-chiari syndrome
the first test for pulmonary hypertension is an echocardiogram–> commonly will show left heart disease
symptoms of pulmonary hypertension are caused by inadequate increase in cardiac output durring exercise
-> dyspnea, lethargy, fatigue
Additional symptoms of pulmonary hypertension emerge as PH progresses and right ventricular hypertrophy and cor-pulmonale develop
What is the difference between bronchiolitis and bronchiectasis?
bronchiolitis–> nonspecific inflamation that affects small airways (< 2mm in diameter)
- >the cause of bronchiolitis is often poorly defined
1) infection with RSV, adenovirus, mycoplasma pneumonia,
2) inhalation injury-> irritants
3) obstructive ventilatory defect without significant response to bronchodilators
bronchiectasis- inflamed and easily colapsable airways, obstruction to airflow
bronchiectasis can affect multiple parts of the lung, and is not restricted to the small airways
bronchiectasis can share clinical features with COPD
What is peri-bronchial cuffing?
Peri-bronchial cuffing (“ donut sign”)- hazyness around large bronchiole seen end on
-represents bronchial wall thickening or fluid around bronchi
causes-pulmonary oedema, small airway inflamatory disease (bronchiolitis, asthma)
What is an air-bronchogram?
air filled bronchi (dark) being made visible by the opacification of surrounding alveoli
-almost always caused by pathological airspace/alveolar process
caused by
- pulmonary consolodation
- pulmonary oedema
- non-obstructive atelectasis
- severe interstitial lung disease
- neoplasms
- pulmonary infarction
- normal expiration
What are Kerley lines?
Kerley lines are seen when the interlobular septa in the interstitium become prominent
Usually occur when pulmonary wedge pressure reaches 20-25mmHg
Can occur most commonly with pulmonary oedema, neoplams (lymphangitic spread), pneumonia, interstitial pulmonary fibrosis, pneumoconiosis, sarcoidosis
kerley A lines- oblique lines < 1mm thick go towards hilum. Represent thickening of the interlobular septa.
- cross normal vasculature
- extend radially from hilum to upper lobes
kerley B lines- oblique lines <1mm thick on periphery of lungs. Represent thickening subpleural interlobular septa.
-usually seen at the lung bases
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What is stridor?
Stridor is a high pitched wheezing or vibrating sound caused by turbulent airflow in the upper airways.
can occur in expiration, inspiration or both
MOST COMMONLY OCCURS IN INSPIRATION
What is an IADL and what is an ADL?
ADL= activities of daily living = activities needed to get up in the morning, get from place to place using their body, and go to bed in the evening
- bathing
- toileting
- brushing teeth
- dressing eating
- walking
IADL= instrumental activities of daily living= tasks that people do once they are up that support an independant lifestyle
- cooking
- shopping
- managing finances
- using telephone
- driving
- managing medication
What is FEV1/ FVC?
FEV1= forced expiratory volume in 1 second
FVC= Forced vital capacit
FEV1/FVC = proportion of a persons vital capacity that they are able to expire in 1 second
Normal FEV1/FVC ~ 80%
FEV1/FVC is also called the Tiffeneau- Pinelli index
On a pulmonary function test how can you differentiate a restrictive from a obstructive pattern? What is normal?
PFT’s are a graph of flow rate vs lung volume
Normal- high flow rate (around 6 L/sec), around, 6 liters of lung volume
Restrictive- small lung volume, lower flow rate
Obstructive- VERY LARGE lung volume, but at the lower lung volumes the FLOW RATE DROPS OFF.–> CO2- retainer
What is a phelgmon?
Spreading diffuse inflammatory process with formation of suppurative/purulent exudate or pus.
diverticulitis is an example of a phlegmon
What are the different volumes on a PFT?
What are the symptoms and causes of left heart failure vs right heart failure?
left heart failure->symptoms–> left sided S3, rales, wheezes, tachypnea
causes–>previous MI, aortic stenosis, left sided endocarditis
right heart failure–>symptoms–>right sided S3, increased JVP, ascites, hepatomegally, peripheral edema
causes–> left heart failure, pulmonary hypertension, right ventricular MI, mitral stenosis, right sided endocarditis
What is the classification system of HF?
NYHA (New York Heart Association)
I- no symptoms with ordinary physical activity
II-mild symptoms with normal activity ( walking > 2 blocks or 1 flight of stairs)
III-symptoms with minimal exertion (< 2 blocks..)
IV- symptoms at rest
What causes an elevated BNP?
Heart failure, pulmonary embolism, pulmonary hypertension, LVH, ACS, renal failure, overload, sepsis
- wait 2 minutes before doing lying vitals
- Wait 1 minute after standing to do standing vitals
What is p-pulmonale? And what are the causes?
p-pulmonale are peaked p-waves with amplitude
> 2.5mm in inferior leads (II, III, AVF)
>1.5 mm in V1 and V2
primary cause of p-pulmonale is pulmonary hypertension
What are the WHO classification of Pulmonary Hypertension?
1) Pulmonary arterial hypertension- idiopathic, CHD, HIV
2) Left sided heaft failure
3) Hypoxia- OSA, COPD, ILD
4) CTEPH
5) Misc- myeloproliferative
How can you classify hematological malignancies?
1)Myeloid
a)Leukemia
- ALL
- CLL
b)Lymphoma
- Hodgkin
- non-Hodgkin
c)Plasmal Cell dyscrasias
- Multiple Myeloma
- MGUS
- Waldenstrom’s Macroglobinemia
2)Lymphoid
a)leukemia
AML
b)myeloproliferative disorders
polycythemia vera
Essential thrombocythemia
CML
Idiopathic myelofibrosis
Myelodysplastic syndromes
What are auer rods pathognomonic for?
AML
What is the definition of leukemia?
20% or greater blasts in bone marrow at the presentation
leukemia is classified into
1) Myeloid
2) lymphoid
What is the difference between a myleoproliferative and a myleodysplastic disorder?
Myeloproliferative–> cell accumulation–> PRV, CML, ET, MF
Myelodysplastic->abnormal bone marrow cell growth
Both disorders have risk of conversion to acute myeloid leukemia
WHAT IS DRESS SYNDROME?
Dress is Drug Reaction with Eosinophillia and Systemic Symptoms
It is caused by starting a drug
most commonly
1) antiepileptics
2) sulfonamides (5- ASA, vancomycin, daptomycin)
There is a latency period between starting the drug and seeing symptoms
DRESS is associated with reactivation of herpes virus
When to suspect DRESS — The diagnosis of DRESS is suspected in a patient receiving a drug treatment who presents with the following signs and symptoms:
●Skin eruption (morbilliform or diffuse, confluent, and infiltrated) (picture 1A)
●Fever (38 to 40°C [100.4 to 104°F])
●Facial edema
●Enlarged lymph nodes
Treatment of DRESS is
1) stop the drug
2) steroids
3) Treat the organ
What is PRES syndrome?
Posterior reversible encephalopic syndrome – also called– Reversible posterior leukoencephalopic syndrome
Caused by loss of autoregulation in the brain, associated with hypertension
the clinical syndrome of reversible posterior leukoencephalopathy syndrome
What are the commenal flora of the skin?
(CONS)Coagulase negative staph (epidermidis, saprophyticus)
Corynebacteria
propionbacteria acnes
What are the normal bacteria of the mouth?
Strep Viridans
HCEK
Neisseria
Anaerobes (Peptostreptococcus, veillonella, fusobacterium, actinomyces, prevotella)
What are simple criteria for hospitalization of pneumonia patients?
CURB 65
Confusion
Urea> 7
Respiratory rate > 30
Blood pressure –> systolic < 90. diastolic < 60
65 ( Age)
0-1 –> outpatient
2- inpatient
3-5- ICU
What is the approach to abnormal rhythm?
bradyarrhythmia (
- sinus bradycarida
- sick sinus syndrome
- SA block
- AV block
- junctionl escape
- ventricular escape
tachyarrhythmia (>100)
1) constant RR interval
2) irregular RR