Shock MCQs Part 4 – Ultra Hard ICU & Emergency Cases
This section is designed for advanced medical students, ICU rotations, and final exam preparation. Expect complex clinical reasoning and hemodynamic interpretation.
📌 ICU Core Concepts
- MAP = (CO × SVR) is key target in ICU resuscitation
- Vasopressors used when fluids fail
- Shock requires early lactate clearance monitoring
- Mixed shock types are common in ICU
- Delayed treatment → multi-organ failure
🧠 Ultra Hard MCQs
1. ICU patient: MAP 55, lactate rising, after fluids still hypotensive. Next step?
A) More fluids
B) Vasopressors
C) Diuretics
D) Observe
Fluid refractory shock → start norepinephrine
2. First-line vasopressor in septic shock?
A) Dopamine
B) Epinephrine
C) Norepinephrine
D) Dobutamine
3. Patient on norepinephrine develops tachyarrhythmia. Alternative?
A) Continue same dose
B) Switch vasopressor strategy
C) Stop all drugs
D) Give fluids only
4. Which shock type benefits most from inotropes?
A) Hypovolemic
B) Cardiogenic
C) Septic early
D) Neurogenic
5. Persistent high lactate despite resuscitation indicates?
A) Recovery
B) Tissue hypoxia
C) Hyperventilation
D) Hyperglycemia
6. Mixed shock most commonly seen in?
A) Simple trauma
B) ICU patients
C) Healthy adults
D) Pediatrics only
7. Shock with low SVR + high CO + fever = ?
A) Cardiogenic
B) Septic
C) Hypovolemic
D) Obstructive
8. Best marker of resuscitation success?
A) Blood pressure alone
B) Heart rate
C) Lactate clearance
D) Temperature
9. Dopamine is preferred in shock when?
A) Always first line
B) Bradycardia with risk of arrhythmia
C) Never used
D) Only in septic shock
10. Shock index is high (>1) indicates?
A) Stability
B) Severe circulatory failure
C) Hypertension
D) Recovery
📊 ICU Summary
✔ Lactate = severity marker
✔ Vasopressors when fluids fail
✔ ICU shock often mixed type
🧠 Final ICU Challenge
👉 Answer: Start vasopressor 😏