DECK6 Flashcards
what are common adverse effects of Cisplatin?
nephrotoxicity tinnitus and hearing loss! electrolyte abnormalities severe n/v neurotoxicity
what are the significant CNS and psych side effects that can be caused by the non-nucleoside reverse transcriptase inhibitor Efavirenz?
Efavirenz can cause:
- dizziness
- insomnia with vivid or bizarre dreams
- depression, anxiety
- confused thinking
- aggression
- use cautiously in pts with a hx of psych illness
what are potential side effects of TMP-SMX?
GI upset
Stevens-Johnson syndrome
agranulocytosis
what is the first-line, nonmedical tx for urge incontinence in females?
urge incontinence is usually associated with bladder detrusor overactivity
first-line, non-medical therapy = BLADDER TRAINING
next line med tx = Oxybutynin (an antimuscarinic/anticholinergic) – it relaxes the detrusor muscle and reduces spasm
Henoch-Schonlein Purpura (HSP) is a childhood illness. what are clinical findings? what pathologic findings are seen on skin biopsy?
palpable, nonblanching, symmetric purpuric lesions, most commonly on the butt and lower extremities; joint pain; abdominal pain and renal failure
skin biopsy demonstrates a leukocytoclastic vasculitis (neutrophilic small vessel vasculitis) in the postcapillary venules, with extensive deposition of IgA
what are symptoms of a cataract?
painless blurring of vision, glare, and halos around lights
pts frequently experience a worsening of distance vision initially (myopic shift), which may occur before opacification bcs evident
with increasing opacification, the RED REFLEX IS LOST and retinal detail becomes less visible
what is the first-line tocolytic at 32-34 weeks of gestation? what are its side effects?
Nifedipine (CCB)
Maternal side effects include tachycardia/palpitations, hypotension (peripheral vasodilator, so leads to decreased SVR) nausea, flushing, headache
what is the first-line tocolytic at <32 weeks of gestation? what are side effects (maternal and fetal)?
Indomethacin (COX inhibitor)
Maternal side effects include gastritis and platelet dysfunction
Fetal side effects include oligohydramnios and closure of the ductus arteriosus
what is used as a short-term tocolytic in the inpatient setting? what are side effects?
Terbutaline (beta agonist)
Maternal side effects include tachycardia/arrhythmias, hypotension, hyperglycemia, and pulmonary edema
pt presents with pancreatitis after drinking and he has grossly lipemic serum and palmar xanthomas. what does he most likely have? what medicine can be used for tx?
Severe hypertriglyceridemia – possibly secondary to dysbetalipoproteinemia
alcohol consumption in the setting of severe hypertriglyceridemia may cause repeated bouts of pancreatitis
Tx with a fibric acid derivative such as FENOFIBRATE
what are potential predisposing factors for torsades de pointes (a type of polymorphic ventricular tachycardia)?
antiarrhythmic drugs
(sotalol, used to maintain sinus rhythm, has the potential side effect of prolongation of the QT interval, which predisposes to torsades de pointes)
structural heart disease
hypokalemia and/or hypomagnesemia (like could result from diarrhea)
what findings indicate a pt’s small bowel obstruction is “complicated” and warrants emergent surgical exploration?
changes in the character of the pain, fever, hemodynamic instability (hypotensive, tachycardic), guarding, leukocytosis, and significant metabolic acidosis
what are risk factors for cervical cancer?
TOBACCO USE!! immunosuppression (HIV) early onset of sexual activity multiple or high-risk sexual partners previous STI hx of vulvar or vaginal cancer
Besides stopping the offending agent and supportive care, what medications can you give to tx neuroleptic malignant syndrome?
Bromocriptine (or amantadine) - reverse dopamine blockade
Dantrolene - direct acting muscle relaxant
if you see pericardial calcifications on a CXR, and the pt also has signs of right heart failure and a pericardial knock (middiastolic sound), what is this likely?
constrictive pericarditis
what are potential side effects of amiodarone?
hypo- and hyperthyroidism
hepatotoxicity - elevated transaminases, hepatitis
bradycardia and heart block
chronic interstitial pneumonitis (cough, fever, dyspnea, pulmonary infiltrates) **most common
peripheral neuropathy
visual disturbances
blue-gray skin discoloration
what are the 3 main categories of diabetic retinopathy and what characteristics do you see on exam with each one?
- Background or simple retinopathy - microaneurysms, hemorrhages, exudates, and retinal edema
- pre-proliferative retinopathy - cotton wool spots
- proliferative or malignant retinopathy - consists of newly formed vessels
* visual impairment occurs with development of macular edema
gradual loss of peripheral vision, resulting in tunnel vision. Ophthalmoscopy shows cupping of the optic disc. may also be a diabetic pt. what is this?
open angle glaucoma
in a cirrhotic pt with medium- large sized esophageal varcies, what med do you give to reduce the risk of variceal hemorrhage?
nonselective beta blockers!! (propranolol, nadolol)
nonalcoholic fatty liver disease is associated with what? what is the mechanism behind it?
associated with insulin resistance – this leads to increased peripheral lipolysis, triglyceride synthesis, and hepatic uptake of fatty acids but decreased clearance of free fatty acids (due to decreased VLDL production)
what is trihexyphenidyl?
an anticholinergic agent, typically used to tx younger pts with Parkinson’s disease where tremor is the predominant symptom
what mineral might you be deficient in if you complain of food not tasting anymore, alopecia, pustular skin rash around the mouth and on the extremities?
Zinc deficiency!
may also have hypogonadism, impaired wound healing, and immune dysfunction
what drugs have been shown to increase appetite and weight gain in pts with cancer-related anorexia/cachexia syndrome?
progesterone analogues (megestrol acetate and medroxyprogesterone acetate) and corticosteroids
pt with HIV just moved to Missouri, they have fever, wt loss, cachexia, cough, dyspnea, mucocutaneous lesions (papules, nodules), hepatospenomegaly, and LAD. Labs show pancytopenia and trasaminitis. CXR shows b/l reticulonodular opacities with hilar lympadenopathy. what do they have?
Disseminated histoplasmosis!
get a urine Histoplasma antigen
how does diaphragmatic rupture after a trauma typically present? what side is more common?
more common on the left side bc the right side tends to be protected by the liver
pts usually have respiratory distress and can have deviation of the mediastinal contents to the opposite side
elevation of the hemidiaphragm on CXR might be the only abnormal finding
CXR showing an NG tube in the pulmonary cavity is diagnostic
pt with shoulder dystocia presents with extended wrist, hyperextended MCP joints, flexed interphalangeal joints (“claw hand”), and absent grasp reflex. They also have horners syndrome. Moro and biceps reflexes are intact. What is the name of this palsy? what nerves were damaged to cause it?
Klumpke palsy
8th cervical and 1st thoracic nerve injury
(associated damage to the sympathetic fibers that run along C8 and T1 manifest as ipsilateral miosis and ptosis of Horner syndrome)
pt presents with anasarca (full body edema), pulmonary and facial edema, HTN, and abnormal UA with proteinuria and microscopic hematuria. what is this most likely? what is the mechanism of the edema?
acute nephritic syndrome – due to primary glomerular damage
- primary glomerular damage leads to decreased GFR with eventual development of significant volume overload (eg, pulm edema, distended neck veins, anasarca)
(causes include PSGN, IgA nephropathy, lupus nephritis, membranoproliferative GN, and rapidly progressive GN)
what are the most common causes of osteomyelitis in pts with Sickle cell disease?
Salmonella!!
and staph aureus
what statistical test is used to compare the means of two groups of subjects?
two-sample t test
what change in heart sounds can often be heard during the acute phase of myocardial infarction due to left ventricular stiffening and dysfunction induced by myocardial ischemia?
S4 (atrial gallop)
in postpartum hemorrhage, initial tx begins with bimanual massage and uterotonic meds. What are the 3 uterotonic meds? and what are contraindications to their use?
- Oxytocin = first line (IV infusion)
- Methylergonovine - causes smooth muscle constriction, uterine contraction, and vasocontriction. A hx of HTN is a contraindication!!
- Carboprost - synthetic prostaglandin that stimulates uterine contraction. it causes bronchoconstriction, and ASTHMA is a contraindication!!
Name this vitamin deficiency:
angular cheilosis, stomatitis (hyperemic/edematous oropharyngeal mucous mebranes), glossitis; normocytic anemia; seborrheic dermatitis
Riboflavin (B2) deficiency!!
**it’s riboFLAVIN, so the FLAVIN is like your mouth – angular cheilosis, cracked lips, swollen big tongue to taste the FLAVIN
more common in underdeveloped countries w/ severe food shortages
what drug used in the tx of RA causes a macrocytic anemia? what are other side effects of this drug?
Methotrexate
- it works by inhibiting dihydrofolate reductase
- other side effects include: nausea, stomatitis, rash, hepatotoxicity, interstitial lung dz, alopecia, and fever (likely due to depletion of folate)
- some of these rxns can be alleviated with folic acid supplementation (w/o changing the efficacy of MTX)
how should pts be managed that present with persistent tachyarrhythmia (narrow- or wide-complex) causing hemodynamic instability?
immediate synchronized cardioversion
a pt with Parkinsonism experiences orthostatic hypotension, impotence, incontinence, and other autonomic sxs such as dry mouth and dry skin. what is this suggestive of?
Multiple system atrophy (Shy-Drager syndrome)
an unimmunized child presents with fever and bilateral swelling and tenderness anterior to the ears extending inferiorly and obscuring the angle of the mandible. what is this? and what are possible complications?
Mumps!! - viral infx that presents w/ fever and parotitis after a nonspecific prodrome
ASEPTIC MENINGITIS is the most common complication of mumps (HA, fever, nucal rigidity)
ORCHITIS is another complication that occurs primarily in postpubertal males and can impair fertility
what bug is a common cause of nosocomial-acquired endocarditis, particularly in pts with associated nosocomial urinary tract infections?
Enterococci species (eg, Enterococcus faecalis)
pt had a ROux-en-Y gastric bypass surgery 2 years ago. she has now developed bloating, flatulence, and abdominal discomfort with significant diarrhea with steatorrhea and weight loss. these episodes are often severe after a meal but the pt hasn’t noticed specific dietary triggers. stool test demonstrates increased fecal fat. lab work shows a macrocytic anemia. what is the most likely cause?
Small intestinal bacterial overgrowth
- due to an increased bacterial load that alters the normal flora and causes excessive fermentation, inflammation, and malabsorption.
- may be a macrocytic anemia due to nutritional deficiencies