End
1 :

Hint : 🧠Osmotic diuretic ↓ICP.

Correct Answers:

  • Mannitol 25%


Rationale :

✅ Mannitol 25% is an osmotic diuretic used to lower increased intracranial pressure (ICP) by pulling fluid from swollen brain tissue into the bloodstream.

✅ This helps reduce cerebral edema, improve cerebral perfusion, and decrease worsening neurological deterioration linked with Cushing’s Triad (late sign of rising ICP).

✅ Mannitol also reduces blood viscosity briefly, which can improve cerebral blood flow and oxygen delivery.

✅ The nurse must monitor serum osmolality, electrolytes, urine output, and blood pressure because mannitol can cause fluid shifts and dehydration.

✅ It is commonly used in acute neuro emergencies when rapid ICP reduction is needed while definitive treatment is underway.

Hydroxyethyl glucose

✅This is a volume-expanding IV solution, not a standard medication for lowering ICP.

✅It can worsen fluid overload and does not pull fluid from brain tissue to reduce swelling.

Dextran 70

✅This is a plasma expander used for volume support, not for treating elevated ICP.

✅It can increase circulating volume and does not directly decrease cerebral edema.

Albumin 25%

✅Although hyperoncotic, it is primarily used for volume expansion and specific hypoalbuminemia-related needs, not first-line ICP reduction.

✅In neuro injury, aggressive colloids may increase intravascular volume without reliably correcting brain swelling.


Distractor Analysis :

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