Medicine 2 Flashcards
What is the best initial test for suspected dx of pneumothorax?
Bedside US is 90% sensitive and specific
upright AP view is good but only 50% sensitive
How do you calculate anion gap?
What is normal anion gap?
= Serum Na - (Serum Cl + Serum Bicarb)
normal = 12
Common causes elevated anion gap metabolic acidosis
MUDPILES Methanol Uremia DKA Popylene glycol/paraldehydre Isoniazid/Fe Lactic Acidosis Ethylene Glycol (antifreeze) Salicylates (ASA) *Metformin increases risk lactic acidosis (2.2 diarhrea)
Progressive neuro disease with symptoms in apraxia, language difficulties, executive dsyfunction. Over 60 years of age, pt become aggitated, irritable and frustrated.
Dx and Tx
Alzeihmers; irreversible and progressive. Pt pass away from infection/complications, malnutrition or dehydration
Tx Cholinesterase inhibitors to slow progression
Pt with stepwise decline and cognignition as well as possible focal neurological findings. Brain imaging shows multiple small cortical and subcortical infarcts.
Dx?
RF?
Vascular dementia
RF: hypertension, DM, elevated cholesterol
Newborn presents at 4 days of life with BL purulent conjuctival discharge, born at home. No routine labs done for mom during pregnancy.
Dx?
Tx?
Prevention?
Gonococcal conjuctivitis, dx with gram stain adn shows G - diplococci or + culture on Thayer martin
Tx is one dose of IM CTX of Cefotaxime
Prevention: erythromycin eye ointment
What are SE of Lithium toxicity?
What medications can precipitate this SE?
Confusion, ataxia, neuromuscular excitability
Be careful in co-administration with these drugs: NSAIDs, Thiazide diuretics (chlorthalidone), ACE inhibitors
Goal TI: 0.8 to 1.2 mEq/L
Acute onset and potentially fatal SE to medication; involves fever, extreme generalized lead pipe rigidity, autonomic instability, AMS
Neuroleptic malignant syndrome
What is the treatment for Lithium toxicity in patients with levels?
General Approach:
Levels >4
Levels >2.5 with signs or Sx of renal fail
General: q2-4 levels, aggressive IV hydration with NS, bowel irrigation if OD
Hemodialysis in pts >4 or 2.5 with renal fail or increasing levels despite aggressive IV hydration
Syndrome includes tremulousness, confusion, myoclonus, HYPERreflexia, hyperthermia, tachycardia, diaphoresis, HTN, V/D. From mult agents of same drug class
Serotonin syndrome From SSRIs MAOis: phenylzine SNRIs TCAs
What symptoms will women with prolactinoma present with? Men? Why?
Premenopausal, oligo/amenorrhea, infertility, galactorrhea, hot flashes, decreased bone density
Men: infertility, decreased libido, impotence, big boobs
High prolactin–> suppresses GNRH (gonadotropin releasing hormone), LH and FSH
How is prolactinoma dx and treated?
Prolactin level >200 + MRI
mild elevation may be 2/2 to other causes; meds as cause; antipsychotics, nipple stim, hypoT, stress/exercise)
Tx = Doapmine agonist (cabergoline, bromocriptine)
Pt with hx of well controlled T1DM presents with recurrent episodes of hypoglycemia, fatigue, wt loss, weakness and low BP with hyperpigmented skin.
Most likely dx?
What lab abnormalities would you expect to see?
Addisons, Adrenal insufficiency
HyperKalemia with mild metabolic acidosis ( can’t excrete either H+ or K+ bc of aldosterone loss)
HypoNa
May have hypoglylcemia and neutropenia
Pt presents with maroon stools and blood in rectum. Most likely location of bleed?
What would lead you to pursue EGD first?
Lower GI
Get EGD first in patient with hematochezia and hemodynamic instability… assume upper GI bleed until ruled out, resuscitate first
Most common adverse reaction occurring in 1-6 of receiving blood transfusion. Develop fever, chills, malaise /o hemolysis
Prevention?
Febrile nonhemolytic transfusion reaction
Due to small amt of residual plasma/leukocyte debris in red cell concentrate–> during storage these leukocytes release cytokines causing reaction
Prevent with Leukoreduction
Patients with BMT, acquired or congenital cellular immunodeficiency, Blood from 1st or 2nd degree relatives get what special tx for blood transfusions?
Irradiated
What patients get washed RBCs for transfusions?
IgA deficiency, Complement dependent autoimmune hemolytic anemia, Cont allergic rx despite antihistamines
What pts get leukoreduced RBC infusions
chronically transfused, CMV seroneg at risk, potential transplant, previous febrile non hemolytic transfusion patients
Home health aid services do NOT include..
medication or periodical health evaluation
What patients require eval with cystoscopy?
Gross hematuria w/o evidence of glomerular disease or infection
Microscopic hematuria w/o evidence of glomerular disease but risk of malignancy
recurrent UTI
Obstructive symptoms c/f stone or stricture
Irritative symptoms w/o UTI
abnormal bladder imaging
Seen in patients with preexisting asthma or CF; recurrent and quickly resolving asthma exacerbations, infiltrates on CXR and CT that quickly come and go, central bronchiectasis and coughing brownish mucus plugs
ABPA: Allergic bronchoplmonary aspergillosis = exaggerated IgE/IgG immune response
hypersensitivity dx associated w/ noninvasive aspergillosis colonization
Dx skin test for aspergillus, eosinophilia >500, IgE >417, Speficic IgG and E for A. fumigatus
Pt has ABPA, what is treatment
Steroids and itraconazole or voriconazole (NOT fluconazole)
Central bronchiectasis/brown mucus/fleeting infiltrates in hx of asthma or CF
Pt with difficult to control asthma, allergic rhinitis, nasal polyps, chronic sinusitis, skin stuff (granulomas, purpurua)
Dx
Churg Strauss or eosinophils granulmatosis with polyangitis; uncommon auto-immune vasculitis
_____ presents as linear papules, clear and fluid filled vesicles, painful and itchy and spread via contaminated clothes and resin
Tx?
Poison ivy dermatitis
remove clothes, cool compresses, topical steroids and oral if severe
Type IV hypersensitivity