Soru

Zorluk: KolayPharmacologic Interventions

A 45-year-old man is brought to the emergency department actively seizing. His wife reports that he has a history of epilepsy but ran out of his medications last week. The generalized tonic-clonic seizure began 10 minutes ago and has been continuous. He is unresponsive, and his airway is currently patent. Intravenous access is established. Arrange the following pharmacologic interventions in the correct sequential order of administration for escalating management of this patient's condition.

  1. 1Intravenous lorazepam
  2. 2Intravenous fosphenytoin
  3. 3Intravenous propofol continuous infusion

Cevap

The correct sequence of pharmacologic administration for status epilepticus is intravenous lorazepam, followed by intravenous fosphenytoin, and finally intravenous propofol continuous infusion.
The standard protocol for status epilepticus involves a clear step-wise escalation. First-line therapy requires a rapid-acting benzodiazepine (such as intravenous lorazepam) to immediately halt the seizure. Second-line therapy involves a long-acting antiepileptic drug (such as intravenous fosphenytoin, valproate, or levetiracetam) to provide sustained control. If the patient continues to seize (refractory status epilepticus), third-line therapy with continuous anesthetic infusions (such as propofol, midazolam, or pentobarbital) is indicated, which also necessitates airway protection via endotracheal intubation.

Adım Adım Çözüm

1
Identify the clinical presentation.
The patient is in status epilepticus (continuous seizure lasting >5>5 minutes).
Recognizing status epilepticus triggers the need for emergent algorithmic pharmacologic management.
2
Determine the most appropriate first-line therapy.
Intravenous lorazepam.
Rapid-acting benzodiazepines cross the blood-brain barrier quickly for immediate seizure cessation.
3
Determine the most appropriate second-line therapy.
Intravenous fosphenytoin.
A long-acting antiepileptic drug is required for sustained seizure control and is administered if the patient does not respond to benzodiazepines.
4
Determine the most appropriate third-line therapy.
Intravenous propofol continuous infusion.
Anesthetic continuous infusions are used for refractory status epilepticus that fails first- and second-line treatments, requiring intubation.

Anahtar Kavram

The acute pharmacologic management of status epilepticus follows a step-wise escalation algorithm: first-line rapid-acting benzodiazepines, second-line long-acting antiepileptic drugs, and third-line continuous anesthetic infusions.
Tahmini Süre:1m 0s
Bu soruyu puanla