Lab Rats In Lab Coats
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Most common causes of FUO:

• Infection, most commoly TB
• Malignancy
• Connective tissue disorders
• Miscellaneous
• Unidentified causes/spontaneous remission
Lab Rats In Lab Coats
Most common causes of FUO: • Infection, most commoly TB • Malignancy • Connective tissue disorders • Miscellaneous • Unidentified causes/spontaneous remission
TB is the most common cause of FUO worldwide, particularly in the  developing world and immigrants from those countries.
The first step in the evaluation of a patient with FUO for the physician, who has not seen the case previously, is to elicit the history carefully and to repeat the physical examination and investigations if necessary.
Heart failure (HF) is a disease with neurohormonal components; the sympathetic nervous system & the RAAS system try to compensate for the fall in cardiac output. But they make matters worse anyways.
Hemodynamic stability is determined by blood pressure & the presence or absence of pulmonary edema.
MI patients are classified based on their hemodynamic status:

1. Hemodynamically stable (mild). Treated with anti-ischemic drugs.
2. Hypotension without pulmonary edema. Treated with anti-ischemic + normal saline.
3. Pulmonary edema without hypotension. Treated with anti-ischemic + diuretics.
4. Pulmonary edema & hypotension (cardiogenic shock, severe). Treated with anti-ischemic + positive inotropic agents + ACEi + diuretics (even if the patient is severely hypotensive, we should give them diuretics).
An ischemic heart wall is hypokinetic. If it goes through MI, the infarcted segment of the heart becomes akinetic, then dyskinetic (moves in the opposite direction of the normal heart wall; if the normal wall contracts, the infarcted wall bulges out), leading finally to the formation of an aneurysm.

Aneurysm complications:
• Thrombus/embolus formation.
• Arrhythmia.
• Persistent ST-elevation.
• Cardiac wall rupture.
Heart failure (HF) can be a complication of MI because of cardiac remodelling.
Coronary circulation of the heart
Lab Rats In Lab Coats
Coronary circulation of the heart
The artery most commonly occluded in MI is the LAD (Left Anterior Descending). It leads to anterior MI.

Occlusion of the RCA (Right Coronary Artery) leads to inferior MI.

Occlusion of the PDA (Posterior Descending Artery) leads to posterior MI.

Occlusion of the circumflex artery leads to lateral MI.
Lifestyle factors are common contributors to resistant hypertension:

• Elderly patients, black patients, and those with CKD tend to be particularly salt sensitive.
• In an estimated 10% of adults with hypertension in the United States, the hypertension is due primarily to alcohol consump-tion.
• For every 10% increase in body weight, systolic BP increases by 6.5 mm Hg.
What's your dx?
@contactzero_bot
ها صدك
Lab Rats In Lab Coats
What's your dx? @contactzero_bot
The patient is an old, thin woman with abdominal pain
Lab Rats In Lab Coats
What's your dx? @contactzero_bot
أول ما شفت الأشعة ضربتلي صفنة داحاول أفتهم شديصير. من جهة هي تبدو كأنها gallstones ومكانها هو نفسه مكان المرارة بس من جهة ثانية شكلها عبالك حبوب كهوة وما يرهم يكون gallstones... مع ذلك سألت المُرافقة إذا الحجية عدها ألم ببطنها أو حصوة بالمرارة... المُرافقة افتهمت السالفة (على ما يبدو هالأشعة محيرة كم شخص قبلي وسائليها نفس الاسئلة) ف كالتلي أنّ الحجية عايفة السبحة بجيبها وما تقبل تعوفها ولهذا طالعة هيج.
الظاهر الردهة كلها طلعت تعرف بالسالفة، بحيث لما انداريت لكيت المريضة اللي كبالنا هم دتضحك وتكلي "والله الحجية عدها سوالف"
As for the abdominal pain, I forgot to even ask about it or take a proper hx tbh... I have seen enough medicine for the day