A patient with ruptured spleen is taken for laparotomy. His blood pressure is 80/50 and hea rate is 125/min. Induction agent Of choice for this patient is:
**Core Concept**
The patient in question is experiencing hypovolemic shock due to a ruptured spleen, leading to decreased blood pressure and increased heart rate. The induction agent of choice in this scenario should be one that rapidly increases blood pressure and maintains cardiac output.
**Why the Correct Answer is Right**
The correct answer is **Ketamine**. Ketamine has a sympathetic stimulant effect, which increases blood pressure and heart rate, making it an ideal choice for patients in hypovolemic shock. It also has a higher first-pass metabolism, which means it can provide rapid vasopressor effects. Additionally, ketamine is a bronchodilator, which is beneficial in patients with potential pulmonary complications.
**Why Each Wrong Option is Incorrect**
* **Option A:** **Etomidate** is a good choice for patients with head injuries or those requiring sedation, but it may cause hypotension, which is not ideal in this scenario.
* **Option B:** **Propofol** can cause significant hypotension and is not recommended for patients with hypovolemic shock.
* **Option C:** **Midazolam** is a benzodiazepine with minimal effect on blood pressure, making it unsuitable for this patient.
**Clinical Pearl / High-Yield Fact**
In patients with hypovolemic shock, choose an induction agent that has a sympathetic stimulant effect to rapidly increase blood pressure and maintain cardiac output.
**Correct Answer:** B. Propofol.