Internal Med Rosh Review Flashcards
Describe the typical patient who has a spontaneous pneumothorax.
Tall thin male between 20 and 40 who smoke.
To which side would the mediastinum shift in a tension pneumothorax?
Away from the affected side.
What pathologic finding is associated with Parkinson disease?
Lewey bodies in the substantia nigra.
What are the hallmark features of Parkinson disease?
Resting tremor(pill rolling), cogwheel rigidity, bradykinesia, shuffling gait, masked facies, microphagia, postural instability.
In what disease is atrophy of the caudate nucleus and putamen seen in?
Huntington disease
When do the symptoms of Huntington disease usually present?
30-50
What are the hallmark features of Huntington disease?
Choreiform movements, cognitive and behavioral decline, dementia
Tua tangles in the intercellular spaces of neurons is seen in what disease?
Alzheimer disease
What sign seen in Parkinson disease is characterized by a sustained blink response to repetitive tapping over the bridge of the nose?
Myerson sign.
What is the most-likely diagnosis for a crescendo-decrescendo systolic murmur that is heard best in the right second intercostal area. The murmur decreases with the Valsalva maneuver
Aortic stenosis
What are the symptoms of aortic stenosis?
Exertional dyspnea, syncope, and angina.
What is the most appropriate therapy for symptomatic aortic stenosis?
Aortic valve replacement with biosynthetic valves.
When is percutaneous balloon valvuloplasty used to treat aortic stenosis?
In young and adolescent patients because it is associated with early restenosis in the elderly.
When is aortic valve replacement with mechanical valves indicated for aortic stenosis?
In patients younger than 50 who can tolerate warfarin therapy.
When is aortic root replacement indicated in aortic stenosis?
When the maximal dimension of the aortic root is >5,5cm or >5.0cm with family history of aortic dissection, or >0.5 cm increase in 1 year.
What is the Gallavardin phenomenon?
Only the high-pitched components of the murmur of aortic stenosis are heard at the apex, making the murmur sound like mitral regurgitation.
What is the only FDA-approved medication for the treatment of Peyronie disease?
Injectable collagenase Clostridium histolyticum
What physical exam finding is concerning for pyelonephritis?
Positive costovertebral angle tenderness.
What are two first line treatments and durations of therapy for acute uncomplicated cystitis?
TMP-SMX or nitrofurantoin x3-5 days
How many days of treatment are indicated for acute uncomplicated cystitis with comorbid conditions?
7 days
What are the treatment options and durations of therapy for acute uncomplicated cystitis in men?
TMP-SMX or nitrofurantoin for 7 days or a quinolone for 5 days
What is the treatment for reactive arthritis?
Prescription NSAID therapy
What are some common causes of reactive arthritis?
GI infections including Salmonella, Shigella, Yersinia, or Campylobacter.
GU infections such as Chlamydia
What extra-articular symptoms can be caused by reactive arthritis?
Conjunctivitis, uveitis, urethritis, oral lesions, skin changes
Which genetic marker has been linked to reactive arthritis?
HLA-B27.
What is the treatment for superficial thrombophlebitis?
NSAIDs, warm compresses, elevation, and compression.
Where is the most common location for venous stasis ulcers?
The medial malleolus.
What serious complication should be considered when correcting hypernatremia?
Cerebral edema
What serious complication should be considered when correcting hyponatremia?
Osmotic demyelination syndrome
What is the goal rate to correct hypernatremia?
lower serum sodium levels by 10 mEq/L in a 24-hour period
How often should serum sodium and glucose levels be monitored during hypernatremia correction?
Every two to three hours.
What precent of people infected with hepatitis C develop chronic hepatitis C?
85%
What are the long term consequences of chronic viral hepatitis C?
Cirrhosis
How is the diagnosis of chronic viral hepatitis C made?
HCV antibody followed by HCV RNA testing
What is the most frequent indication for liver transplantation in the United States?
Chronic hepatitis C virus infection.
What are the most common viral etiologies associated with acute pericarditis?
Coxsackievirus, echovirus, and cytomegalovirus.
What is the treatment for acute pericarditis?
NSAIDs or colchicine
What EKG findings are expected in acute pericarditis?
Diffuse ST segment elevation and PR segment depressions.
One week after onset, EKG usually becomes isoelectronic, and then T wave inversions may develop.
What are the common causes of acute pericarditis?
acute viral illness is #1
Other etiologies include uremia, autoimmune inflammatory processes, cancer, early-onset MI, and post-MI pericarditis (Dressler syndrome)
List some acute events that can cause thyroid storm?
Surgery, trauma, infection, acute iodine load, parturition
What are some clinical findings consistent with tyroid storm?
Tachycardia, heart failure (high output heart failure), hypotension, a fib, hyperpyrexia, agitation, physchosis, and coma.
What are the 5 steps of treatment for thyroid storm?
Beta blockers (propanolol) Thioamidies (PTU, methimazole) Iodine (given after thionamide) Glucocorticoid (hydrocortisone) Bile acid sequesterant (Cholestyramine)
Name some precipitating factors for myxedema coma.
Infection, cold exposure, stroke, meds (amiodarone, thithium)
Define myxedema.
Thickened, non-pitting edema of skin
What is the common electrolyte abnormality is myxedema coma?
hyponatremia
What blood pressure medications are used in most hypertensive emergency episodes?
Nicardipine and labetalol
What are the first-line antihypertensive agents in patients with acute aortic dissection?
Esmolol or labetalol.
What medication should be coadministered with isoniazid to reduce risk of peripheral neuropathy?
Pyridoxine
What is the most important side effect of isoniazid?
Hepatitis.
What are the size requirements of induration for a positive PPD for people with no risk factors?
15mm
What are the size requirements of induration for a positive PPD for patients with HIV?
5mm
What is the gold standard test for TB?
Culture for acid fast bacilli
What is the treatment for active TB?
RIPE
Rifampin, Isoniazid, pyrazinamide, ethambutol
What is the Gorlin sign?
The ability to touch the tongue to the nose, which is most commonly seen in patients with Ehler-Danlos syndrome.
What is the recommended screening for lung cancer in patients aged 50-80 with current or former heavy history of smoking?
Yearly low-dose helical chest CT
What is the most common form of lung cancer?
Adenocarcinoma, which accounts for 47% of all cases.
What is a Pancoast syndrome?
A tumor in the superior sulcus of the lung causing shoulder pain and Horner syndrome
What is Horner syndrome?
Ptosis, miosis, and anhidrosis.
What is the first line treatment for an essential tremor?
Propanolol or primidone
What exam findings would be consistent with a finger-to-nose exam in a patient with known Parkinson disease?
The tremor will improve as the patient’s finger approaches the target.
What are the mainstays of treatment for chronic venous insufficiency?
Compression stocking and leg elevation
What vascular condition does hair loss on the distal lower extremities indicate?
Arterial insufficiency.