2008年12月29日 星期一
2008年12月28日 星期日
AEIOU tips
AEIOU TIPS
A - alcohol, anoxia
E - epilepsy
I - insulin (diabetes)
O - overdose
U - uremia, underdose
T- trauma
I - infection
P - psychiatric
S - stroke (cardiovascular)
Alcohol
Epilepsy
Insulin
Overdose
Uremia (and other metabolic causes)
Trauma
Infection
Psychiatric
Stroke
Altered Mental Status
"AEIOU TIPS"
Alcohol/drugsEndocrineInsulinOpiatesUremia
Toxins/traumaInfectionsPsych/porhyriaSAH, shock, stroke, seizure, space occupying lesion
DM treatment
Second-generation Sulfonylureas. More potent and exhibits fewer drug interactions than first-generation agents. May cause more physiologic insulin release with less risk for hypoglycemia and weight gain than other sulfonylureas.
Failure of initial therapy usually should result in addition of another class of drug rather than substitution (reserve substitution for intolerance to a drug due to adverse effects). Considerable debate exists regarding second agents added to (or used initially in conjunction with) metformin. The time-honored approach is to add an insulin secretagogue (usually titrated to no more than the half-maximal approved dose to reduce risk for hypoglycemia). However, some experts recommend a glitazone because of the positive effects of these drugs on inflammation and the vasculature. If this strategy is used, a moderate dose of glitazone (as opposed to the highest approved dose) should be used. A therapeutic scheme utilized by the author is listed in Image 11.
The author usually only uses glitazones in cases of metformin intolerance or contraindication because of the side effects of weight gain and edema seen not infrequently with glitazones. Exceptions to the practice might include patients with marked insulin resistance of relatively normal weight, such as patients of Asian heritage. If an insulin secretagogue is being taken by the patient prior to adding a second agent, the patient should be warned about the possibility of inducing hypoglycemia when another agent is added. In such cases, the insulin secretagogue, not the newly added agent, should be reduced.
From: http://emedicine.medscape.com/article/117853-treatment
Emedicine: Diabetes Mellitus, Type 2: Treatment & Medication
2008年12月26日 星期五
High P LOW Ca
2008年12月22日 星期一
cva artery
NE: http://medinfo.ufl.edu/other/opeta/neuro/NE_main.html
http://www.stroke.org.tw/guideline/guideline_index.asp
ml=widht1(cm) * width2(cm) * cut number / 2
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Artery involved | Syndrome | Pathophysiology |
Anterior cerebral artery | Motor and/or sensory deficit (foot >> face, arm) Grasp, sucking reflexes Abulia, paratonic rigidity, gait apraxia | Embolic > atherothrombotic |
Middle cerebral artery | Dominant hemisphere: aphasia, motor Non-dominant hemisphere: neglect, anosognosia, motor and sensory deficit (face, arm > leg>foot), homonymous hemianopia. | Embolic > atherothrombotic |
Posterior cerebral artery | Homonymous hemianopia; alexia without agraphia (dominant hemisphere); visual hallucinations, visual perseverations (calcarine cortex); sensory loss, choreoathetosis, spontaneous pain (thalamus); III nerve palsy, paresis of vertical eye movement, motor deficit (cerebral peduncle, midbrain). | Embolic > atherothrombotic |
Penetrating vessels | Pure motor hemiparesis (classic lacunar syndromes) Pure sensory deficit Pure sensory-motor deficit Hemiparesis, homolateral ataxia Dysarthria/clumsy hand | Small artery (lacunar) infarct |
Vertebrobasilar | Cranial nerve palsies Crossed sensory deficits Diplopia, dizziness, nausea, vomiting, dysarthria, dysphagia, hiccup Limp and gait ataxia Motory deficit Coma Bilateral signs suggest basilar artery disease. | Embolic = atherothrombotic |
Internal carotid artery | Progressive or stuttering onset of MCA syndrome, occasionally ACA syndrome as well if insufficient collateral flow. | Atherothrombotic > embolic |
2008年12月8日 星期一
Cancer Pain
First step: Acetaminophen
Second step: NSAID (careful), or Temgesic (sublingual tablet)
Third step: Codeine, Tramal, Durogesic patch (Fentanyl patch)
Fourth step: oral morphine solution
Fifth step: IV morphine. Auxillary medication: anti-depressant, anxielytics
Chills or Fever Management
2. First line: Acetaminophen
3. Second line: Vena, Hydrocortisone (Solucortef)
4. Third line: Morphine or Demerol (血壓低病患不宜)
5. Fever 應視情況給予antipyretics 例如1: Past history of febrile convulsion (child), 2:Cardiac or pulmonary insufficiency patients, 3 Pregnancy patients, 4: High metabolism 會惡化thrombocytopenia ,6. Fever or chills 是cytokine reaction 臨床無法分別tumor fever or infection, (不管是feverpattern or temperature) 排除infection 之後才能當成tumor fever, Myeloid Leukemia 基本上不會tumor fever, 應視為infection 處理, Hodgkin disease, Lymphoma(AILD like, T cell, NKcell) tumor fever 比較常見。
Pack RBC 可換成Washed RBC 來避免
Platelet 可用prestorage-leukocyte depleted PLT 來避免
FFP則無法避免),可以使用Panadol or steroid 預防
電血:使血品中的lymphocyte ”inactivation”,將來無法再複製分裂(transfusion-related GVHD) 何時該電血?
Immunocompromised pt, ex. Post-allo-HSCT(一日BMT,終身電血),
ALC<1000 (Absolute lymphocyte count)
需要近親輸血時 (因HLA 可能相當接近,電血可以避免transfusion GVHD)
哪些血液製品要電血? RBC & PLT 製品要irradiation (FFP, cryopricipitate 不必電血)
Pack RBC: A, B, O type 要 match
1. Kept Hb > 6 g/dL for chronic anemia (non-malignant)
2. Kept Hb > 8 g/dL for acute leukemia & lymphoma
3. Kept Hb >10 g/dL for cardiopulmonary disease OR receiving radiotherapy
4. 若病人有症狀,亦需給予治療, keep Hb > 9~10 g/dL
Platelet: 盡量配合A, B, O type,但若無ABO matched 其他血型也可輸,
以single donor,WBC depleted platelet 為佳
若有anti-platelet 抗體可輸HLA matched 血小板 (需知道HLA-ABC 的結果)
1. Kept Plt > 10K active bleeding(-), aspirin(-)
2. Kept Plt > 20K aspirin(+), active bleeding(-)
3. Kept Plt > 50K if active bleeding(+), including DIC, APL patient, menstrual bleeding
4. Check anti-platelet antibody for refractory thrombocytopenia
5. Give Premarin 1 amp q6-8h and platelet supplement for menstrual bleeding