A 72-year-old man is transferred to the intensive care unit with septic shock secondary to a severe intra-abdominal infection. Blood cultures have been drawn and broad-spectrum antimicrobial therapy has been initiated. However, his mean arterial pressure remains below 65 mmHg, and he exhibits signs of poor tissue perfusion. The clinical team proceeds to manage his hemodynamic instability according to standard sepsis resuscitation guidelines. Arrange the following pharmacologic interventions in the correct sequential order of escalation for the treatment of his persistent hypotension.
- 1Administer a rapid bolus of intravenous crystalloids
- 2Initiate an intravenous norepinephrine continuous infusion
- 3Add an intravenous vasopressin continuous infusion
- 4Administer intravenous hydrocortisone
Cevap
The correct sequence of escalation is: 1) intravenous crystalloids, 2) intravenous norepinephrine, 3) intravenous vasopressin, and 4) intravenous hydrocortisone.
Hemodynamic stabilization in septic shock follows a standardized protocol. The foundation of treatment is restoring intravascular volume with a rapid bolus of intravenous crystalloids. If target perfusion is not met, the first-line vasopressor, norepinephrine, is initiated. For patients who require escalating doses of norepinephrine, a second vasopressor, typically vasopressin, is added to augment blood pressure and spare catecholamine toxicity. Finally, if the patient remains hypotensive despite adequate fluids and vasopressors, intravenous hydrocortisone is administered to treat suspected critical illness-related corticosteroid insufficiency.
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Anahtar Kavram
The hemodynamic escalation protocol for septic shock progresses sequentially from fluid resuscitation (crystalloids) to a first-line vasopressor (norepinephrine), followed by an adjunctive vasopressor (vasopressin), and finally corticosteroids (hydrocortisone) for refractory shock.