June 2017 Flashcards
What are 6 treatment categories for thyroid storm?
- Block symapathetic surge
- Propanolol 1 mg - Block T4 production
- PTU
- Methimazole - Block TSH release
- Potassium iodine - Treat AI
- Hydrocortisone 100 mg or Dex 4 mg - Supportive
- Benzos, IVF, - L-carnitine - blocks T4 entry into cells
Cholesytramine - blocks enterohepatic recirculation
What are BP targets for 1.Ischemic stroke (lytics vs. none), 2. SAH 3. IPH
- Stroke - lytics <185/105. No lytics <220/110 (12-25% reduction in 24h)
- SAH <140/90
- IPH <160 sys or what stroke wants
ddx RAD
Structural
- RVH
- PE
- Pulm HTN
- COPD
- Pediatric
Electrical
- RBBB
- Lateral MI
- LPFB
- WPW
Drugs/metabolic
- TCA
- Na chan blocker
- Hyper K
What are the 7 mechanisms of TCA?
- Na channel blocker
- K channel blocker
- NE and DA reuptake inhibitor
- Anti- muscarinic
- Anti- Gaba
- Alpha blocker
- Histamine release
What are 7 Hard and 8 soft signs of neck trauma?
Hard Signs
- Airway compromise
- Expanding hematoma
- Severe active bleeding
- Shock non responsive to fluids
- Decr or absent radial pulse
- Vascular bruit/thrill
- Cerebral ischemia
Soft signs
- Hemoptysis/hematemasis
- Orophargyneal blood
- Dyspnea
- Dysphonia/Dysphagia
- SQ air or mediastinal air
- Chest tube air leak
- Non-expanding hematoma
- Focal neuro deficits
What does C3PO+R2D2 mean? DVT wells score
Cancer Calf swelling Collateral v. Prev DVT Oedema Tender calf Recent Immobilization Recent sx DVT unlikely (-2)
What are 5 abdominal injuries missed by CT?
- Pancreatic
- Bilary system
- Diaphramatic
- Bowel/holoviscous
- Subacute presentations?
What are 6 findings of hypoK on ecg?
- Peaked p
- Prolonged PR
- Flat T
- U wave
- STD
- QT prolongation
Where are U waves found on ecg? in hypoK
usu v1-v3 precordial
What are 10 causes of hypoK?
Incr loss GI - Diarrhea - vomiting - Laxatives
Renal
- RTA
- DKA
- Hyperaldosteronism
- Diuretics
Decr intake: ETOH, malnutrition
Shift:
- Alkalosis
- Insulin
- B agonists
A 0.3 mmol/L drop in K is how much total body depletion?
100 mmol
Why give Mg with K?
- Needed for Na-K ATPase low Mg results in K+ excretion
-
List 10 causes of hyperK
False elevation:
* Hemolysis —> during, after blood draw
Renal Failure:
* Acute or chronic —> decreased elimination
Shift —> acidosis
- DKA
- Addison’s
- Adrenal insufficiency
- Type 4 RTA
Cell death:
- Rhabdomyolysis
- Tumor lysis syndrome
- Massive hemolysis
- Massive transfusion
- Crush injury
- Burn
Drugs:
- BBs
- Acute dig toxicity
- Succ
- ACE-I / ARBs
- NSAIDs
- Spironolactone
- Amiloride (K sparring diuretic)
- K tabs
what are Na and K in AI?
Hyponatremia, hyperkalemia.
5 ecg findings hyperK
- Peak T waves
- Flat P
- prolonged PR
- Widened QRS
- Sine wave
- STE