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Channel Posts
| 2 | https://www.instagram.com/reel/DJrNtyoti1V/?igsh=bTNoMzdtbXo5ZDR2 | 642 |
| 3 | Top 100 CXR • LITFL • CXR Self Assessment Quiz
https://litfl.com/top-100/cxr/ | 1 898 |
| 4 | یک بیمار ۴۵ ساله به دلیل افزایش زمان پروترومبین (PTT) به آزمایشگاه مراجعه کرده است. این بیمار هیچگونه علائمی از خونریزی فعال ندارد و سابقهی پزشکی او نرمال است. نتایج آزمایشگاهی شامل PTT طولانیشده به میزان دو برابر حد طبیعی است. سایر آزمایشات، از جمله شمارش سلولهای خونی و سطح پلاکتها نرمال است. سطح فیبرینوژن، عوامل انعقادی VII، VIII، IX، X، XII را بررسی کردهایم و تمامی آنها در محدوده طبیعی هستند.
کدامیک از گزینههای زیر میتواند علت افزایش PTT بدون خونریزی در این بیمار باشد؟ | 1 |
| 5 |  No text... | 722 |
| 6 | https://www.instagram.com/med_fence?igsh=eHV6dWg0dHM5ZHFz | 859 |
| 7 | https://www.instagram.com/reel/DBmIpUFIznQ/?igsh=MXB4YXVkdDY4YmVyZA== | 1 104 |
| 8 | Arterial Blood Gas (ABG): What It Is, Purpose, Procedure & Levels
https://my.clevelandclinic.org/health/diagnostics/22409-arterial-blood-gas-abg | 1 017 |
| 9 |  نمونه مطلوب دادن خبر بد (۱) - شما سرطان دارید
منبع:
Center for Professionalism and Communication in Health Care
https://webcampus.med.drexel.edu/PCHC/
#communication_skill
#giving_bad_news
#doctor_patient_relationship | 1 280 |
| 10 |  نمونه مطلوب دادن خبر بد (۲) - عدم موفقیت درمان
منبع:
Center for Professionalism and Communication in Health Care
https://webcampus.med.drexel.edu/PCHC/
#communication_skill
#giving_bad_news
#doctor_patient_relationship | 939 |
| 11 | اثر ورزش بر پتاسیم سرم👇
منبع: Uptodate
Potassium is normally released from muscle cells during exercise. The increase in plasma potassium is rarely important clinically, with the one major exception that fist clenching during blood drawing can interfere with accurate assessment of the serum potassium concentration. Repeated fist clenching during blood drawing can acutely raise the serum potassium concentration by more than 1 mEq/L in that forearm, thereby representing a form of pseudohyperkalemia.
The increase in plasma potassium during exercise may be mediated by two factors:
●A delay between potassium exit from the cells during depolarization and subsequent reuptake into the cells via the Na-K-ATPase pump.
●With marked exercise, an increased number of open potassium channels in the cell membrane. These channels are inhibited by ATP, an effect that is removed by the exercise-induced decline in ATP levels.
The release of potassium during exercise may have a physiologically important role. The local increase in potassium concentration has a vasodilator effect, thereby increasing blood flow and energy delivery to the exercising muscle.
The degree of elevation in the plasma potassium concentration in the systemic circulation is less pronounced and varies directly with the degree of exercise: 0.3 to 0.4 mEq/L with slow walking; 0.7 to 1.2 mEq/L with moderate exertion (including prolonged aerobic exercise with marathon running); and as much as 2 mEq/L following exercise to exhaustion which may be associated with both ECG changes and lactic acidosis.
The peak increase in plasma potassium during exercise is less pronounced with prior physical conditioning (perhaps due to increased Na-K-ATPase activity) and more pronounced in patients treated with nonselective beta blockers or those with ESKD even though there is often a lesser degree of attained exercise.
The rise in plasma potassium concentration induced by exercise is reversed after several minutes of rest and is typically associated with a mild rebound hypokalemia (averaging 0.4 to 0.5 mEq/L below the baseline level) . It has been suggested that the changes in plasma potassium might be arrhythmogenic in susceptible patients, such as those with angina pectoris. | 1 158 |
| 12 | آموزش ct شکم و لگن👆 | 1 150 |
| 13 | https://radiopaedia.org/cases/how-to-read-a-ct-of-the-abdomen-and-pelvis | 1 232 |
| 14 | نکات کلیدی:
۱. در انتخاب انتی بیوتیک اولیه وضعیت عمومی بیمار بسیار کلیدی است.
۲. در انتخاب درمان طیفی از داروها پیشنهاد شده و شروع داروهای گرانتر و کمیاب تر به جز افزایش مقاومت انتی بیوتیکی سود بیشتری ندارد.
۳. لطفا از کارباپنم ها به عنوان یکی از انتی بیوتیکهای خط اخر محافظت کنیم.
۴. لطفا لینزولید را برای موارد خاص نگه داریم. وحود نارسایی کلیه دلیل محکمی برای ارجحیت لینزولید بر وانکومایسین نیست.
در بیمار فوق رژیمهای مناسبتری مثل سفاولوسپورین + وانکو ، تازوسین + وانکو نیز قابل تجویز بود. طبیعتا دوز دارو بر مبنای عملکرد کلیوی تنظیم می شود. | 1 192 |
| 15 |  اندیکاسیون افزودن سایر انتی بیوتیکها | 1 039 |
| 16 |  رژیم انتی بیوتیکی انتخابی اولیه | 960 |
| 17 |  گروههای پرخطر | 882 |
| 18 |  تعریف neutropenic fever | 889 |
| 19 | چند نکته 👇 | 988 |
| 20 | رژیم انتی بیوتیکی مذکور: | 1 062 |
