UWorld Flashcards
(221 cards)
What things can trigger paroxysms of HTN in patients with a pheochromocytoma?
increases in intra-abdominal pressure, anesthesia medications, non-selective beta-blockers
What are the two most common causes of esophageal rupture?
following EGD biopsy or Boerhave syndrome.
What are potential patient presentations for a patient with esophageal rupture?
Chest pain, fever, pleural effusion, subcutaneous emphysema, hamman sign
Esophageal rupture can be diagnosed via what imaging techniques?
CXR, CT scan, Water-soluble EGD
What are some common characteristics of Parkinson’s Disease?
- Mask-like, immobile facies
- Bradykinesia
- Resting Tremor
- Rigidity
- Festinating/hypo-kinetic gate
A young man presents with pulmonary hemoptasis. Upon further work-up, he also has 1.2 g of protein in his 24-hour urine collection and dysmorphic RBC casts in his urine. What are you suspecting? How could you diagnose?
Goodpasture disease due to antibodies to Type IV collagen. Diagnose via renal biopsy showing linear IgG deposits on the GBM.
What is the most sensitive screening tool for diabetic nephropathy?
Random urine microalbumin: Cr
A 40-year-old male with a harsh systolic murmur in the R. second ICS that radiates to the carotids likely has this heart defect?
Aortic stenosis due to bicuspid valve
The most common cause of a aortic stenosis in a patient greater than 70-years-old?
Senile Califications
What is the most important risk factor for stroke?
Hypertension
What are symptoms of cushing’s Syndrome that would differentiate from PCOS?
Hyper-pigmentation (inflammatory acne or tinea versicolor), muscle wasting, easy bleeding, hypokalemic alkalosis
How would you differentiate between primary and secondary Cushing’s Syndrome (hyper-cortisol)?
Primary, due to a pituitary tumor, will respond to a dexamethasone suppression test. Secondary (adrenal) or ectopic tumors producing cortisol will have low ACTH and will not respond to the suppression test.
A patient with non-blanching violaceous petechiae should be checked for?
cutaneous small vessel vasculitis
What drugs need to be held prior to a stress test?
Any drugs acting directly on the heart must be held for 48 hours prior to the stress test
What blood levels would be elevated in each of the following testicular tumors?
- Leydig cell
- choriocarcinoma
- teratoma
- yolk sac
Leydig: increased aromotase, testosterone, estrogen; decreased FSH and LH.
Choriocarcinoma: increased serum Beta-hcg (this is also increased with a syncytiotrohphoblast seminoma)
teratoma: increased B-hcg and AFP
Yolk Sac: increased AFP
Any patient with an unprovoked seizure must have what imaging?
CT without contrast or an MRI
Increasing the cutoff point on a study does what to the sensitivity and specificity?
Increased specificity and decreased sensitivity
What are some signs and symptoms of systemic amyloidosis?
Restrictive cardiomyopathy, asymptomatic proteinuria, waxy skin, anemia, hepatomegaly, early satiety, subcutaneous nodules, enlarged tongue, neuropathy.
Cardiac effects of restrictive cardiomyopathy are?
LVH with a non-dilated LA; Right hear failure; preserved EF CHF
Cardiac effects of hypertrophic cardiomyopathy are?
- Asymmetric septal hypertrophy
- anterior motion of mitral valve
- LV outflow tract obstruction
- Harsh Systolic ejection murmur at Left sternal border
Beri-Beri from thiamine deficiency causes?
Dilated Cardiomyopathy
Ischemic cardiomyopathy has what effect on CI, SVR, and LVEDV?
- Decreased CI
- Increased SVR
- Increased LVEDV
A beta cell tumor would have what impact on C-peptide and proinsulin levels?
Both would be increased
Chest pain triggered by emotional stress is common with?
Stable angina