03/01/2026
تخيل معايا Pseudomoans طالعه Resistance to carbapebem but piperacillin sensitive ! 😘
كنا فى المرور فى الرعايه و حاله CKD داخله ب Severe UTI
المهم Feverish
Procal: 23
CRP 383
Urine analysis shows pus 100💚
We have loaded meropenem after taking urine culture
After 2 days
Procal increasing
Fever increasing
CRP increasing 🔥
Urine culture showed Pseudomonas that was sensitive only to colostin and piperacillin only
Imagine. ? Resistant to carbapenem but piperacillin sensitive!!! 🙄
لو انت مكانى فالمرور و استشارى الرعايه بيسالك ؟ هتعمل ايه
هتدى Colistin ؟ مع ان المريض عندك CKD
ولا هتدى piperacillin ؟
طيب المزرعه غلط ؟؟
😢ازاى أصلا تطلع كدا !!؟
القرار صعب بس مش محتاج تاخير اكتر من كذا لازم نبدا و دلوقتى ؟
🤩
Our clinical pharmacy team Confidently has started piperacillin only adjusted to patient’s GFR infused over 3 hours 👏👏
After 4 days
Procal 11
CRP 112
No feverish
Patient has been discharged. 😉
Discussion:
Is the culture wrong.?
Does it make sense to be meropenem and imipenem resistant but piperacillin sensitive
Yes it makes sense 💚😘
Pseudomonas has OprD gene that is responsible for imipenem influx so any mutations will lead to imipenem resistance 🔥
MPM gene also has the ability for meropenem influx so any mutation exhibits MPM mutation will shows Meropenem resistance ✊
MexAB-OprM has the ability for carbepenem efflux 😭
So here the microorganism shows all these 3 genes 😀
OprD. So imipenem resistance 😍
MPM so meropenem resistance 😋
MexAB-OprM so carbapenem resistance 🤪
Piperacillin is not inhibited by these 3 genes 😌
لو محتاج case studies اكتر و تبقى اشطر فى ال antibiotic stewardship
البوست دا هيفيدك
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