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DR. SCIENTIFIC MEDIA

44. In a hospital outbreak, a strain of E. coli is resistant to penicillins and cephalosporins but sensitive to carbapenems. What enzyme is most likely responsible?

7 months ago | [YT] | 2

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DR. SCIENTIFIC MEDIA

1. A woman presents at 10 weeks gestation with hyperemesis gravidarum. What is the most appropriate initial lab test to assess severity?

8 months ago | [YT] | 2

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DR. SCIENTIFIC MEDIA

A community health nurse is assessing a rural village's readiness to initiate a malaria eradication campaign. Which factor most strongly influences successful implementation?

8 months ago | [YT] | 7

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DR. SCIENTIFIC MEDIA

What plan of care is recommended for a patient whose peripheral area appears macerated after removing a wet-to-dry dressing from a draining wound?

8 months ago | [YT] | 6

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DR. SCIENTIFIC MEDIA

🧵 The Pharynx: Crossroads of Air & Food

The pharynx is a short but vital muscular tube that connects the nasal & oral cavities to the larynx and esophagus.
It plays a key role in both breathing and swallowing — keeping you alive and safe every second! 💨🍴

🔹 Divisions of the Pharynx
👉 Nasopharynx – behind the nasal cavity (air only)
👉 Oropharynx – behind the oral cavity (air + food)
👉 Laryngopharynx – leads to the esophagus & larynx

⚙️ Functions of the Pharynx
✅ Directs air → respiratory tract
✅ Directs food → digestive tract
✅ Prevents aspiration with precise coordination

🧠 Nerve Supply

Mainly by the Vagus nerve (CN X)

With help from the Glossopharyngeal nerve (CN IX)

⚕️ Clinical Importance

Dysfunction can cause dysphagia, aspiration pneumonia, or sleep apnea

In children, enlarged tonsils can obstruct the nasopharynx → leading to mouth breathing & snoring

📌 Though small, the pharynx is essential for safe swallowing and smooth breathing!

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