Week 3 Flashcards
Next step in massive >600mL/24hr or >100/hr hemoptysis?
Secure airway (intubate), breathing, circulation, lay them so bleeding lung is in the dependent position (lateral position), then BRONCHOSCOPY, bcus it can localize bleeding, provide suctioning, and can be therapeutic (balloon tamponade, electrocautery).
How to nitrates exert their effect?
Direct vascular smooth muscle relaxation causing venous dilation and increase in peripheral venous capacitance. Anti ischemic effect –> venodilation and decrease in cardiac preload, decrease in LVED and ES volume. This leads to a reduction in left ventricular systolic wall stress which reflects afterload (pressure *Radius/Thickness) and decrease in myocardial oxygen demand.
Most common cause of MR in develped countries?
MVP which initially has mid systolic click and mid to late systolic murmur, but eventually has severe leaflet dysfunction and MR with holosystolic murmur. Though to be due to myxomatous degeneration of the mitral valve leaflets and chordae.
3-4 month old with hypoglycemia, seizures, lactic acidosis, hyperuricemia, hyperlipidemia, doll like face with round cheecks, short, proteuberant abdoment with hepatomegaly?
Glucose 6 phosphatase deficiency, type 1 glycogen storage disease, VOn Gierke
PEA or asystole manage with ..
CPR and vasopressors
No Defibrillation of synchronized CV
When to do defibrillation?
Vfib or pulseless VT
Thrombocytopenia, what to look for?
Chronic HIV infection, EBV, HCV
Cardiac tamponade causes?
Decreased left ventricular preload
Pathophys of high output HF?
2/2 trauma, iatrogenic, atherosclerosis, cancer, PDA, angiomas, pulm AVF, CNS AVF
Shunt a large amount of blood through the fistula decreases SVR, increases cardiac preload, and increases CO. See widened pulse pressure, strong peripheral arterial pulsation, systolic flow murmur,t tachy, flushed extremities.
Common drugs associated with photosensitivity
Tetracyclines (doxy), chlorpromazine, prochlorperazine, furosemide, HCTZ, amiodarone, promethazine, prioxicam
If left untreated hyperthyroidism can cause
Bone loss, osteoporosis 2/2 increased thyroid hormone increase osteoclastic bone resorption. Also high Ca++
Contraindication to raloxifene?
Hx Venous thrombosis
E Antagonist breast and endometrium, E agonist on bone
Adverse effects: Hot flashes, VTE, endometrial hyperplasia and carcinoma with tamoxifen
2 year old with 2 months of chronic oligoarthritis (more in the AM), daily fever for over 2 weeks, and rash, increased WBC/platelet, decreased RBC, increased ESR.. what is dx?
systemic Onset Juvenile idiopathic arthritis
Reyes syndrome what does liver look like?
Mircovesiculr fatty infiltration 2.2 ASA during flu or varicella
HTN IP brain hemorrhage that shows contralateral hemiparesis and sensory loss, and conjugate gaze TOWARD side of lesion, where is lesion?
Basal Ganglia, Putamen (involves internal capsule too)
HTN IP brain hemorrhage that shows contralateral hemiparesis and sensory loss, non reactive miotic pupils, upgase palsy, and gaze away from lesion, toward hemiparesis?
Thalamus
HTN IP brain hemorrhage with deep coma and total paralysis, pinpoint reactive pupils
Pons
Treatment BPD in patients with renal dysfunction?
Valproate bcus lithium nephrotoxic
What is ludwig angina?
Cellulitis of submandibular space, from dental infections that spread to root of the submylohyoid and then sublingual space.polymicrobial usually. Fever, chills, drooling, dysphagia, muffled boice. Crepitus. Tx IV abx.(amp-sulbactam, or clinda) and remove tooth.
What DM2 med can have losing weight as a side effect?
GLP1 receptor antagonist. Exenatide.
Flank pain, hematuria, palpable abdominal mass, scrotal varicoele (left sided)
RCC, abdominal CT
Treatment of asx prolactinoma <10mm?
No treatment
Treatment of prolactinoma <10mm and symptomatic OR >10mm
- Dopamine agonist cabergoline or bromocriptin
- Resect if very large >3cm or it increases in size while on tx
Labs in Vit D deficiency
Low to normal Ca and Phos
Low 25-OH Vitamin D
High high Alk phos, High PTH
How do you manage Renal artery stenosis with HTN?
ARBs or ACEis
Euvolemic hyponatremia in HIV pt?
2/2 SIADH
Workup bilious vomiting in neonate:
1st Abdomina X ray
2nd Water soluble contrast enema
Labs in euthyorid sick syndrome:
Low T3, normal T4 and TSH
Chronic nonbloody diarrhea and weight loss after multiple abdominal surgeries, what type of diarrhea?
Secretory
Risks of succinylcholine in rapid sequence intubation?
Cardiac arrhythmia 2/2 efflux of K ions, causing hyperkalemia!
This is more likely with crush injury, burns, muscle atrophy, denervation. In these cases give non depolarizing NM blockers like vecuronium, rocuronim.
Contraindications to breastfeeding?
Active untreated TB Maternal HIV Herpetic breast lesion Active varicella Chemo/Rad tx Active substance abuse