Leigh
NUR 155 Exam 3 | Shock, Burns, Neuro & SCI – Answer
Key + Short Rationales (125 Questions)
1. B — T6 or above
Stimuli below T6 typically do not trigger AD; T6 and above leads to loss of
sympathetic control.
2. B — Full bladder/fecal impaction
AD is triggered by noxious stimuli such as distention.
3. B — Bradycardia + hypertension
Hallmark sign: massive vasoconstriction → ↑BP + reflex ↓HR.
4. B — Maintain organ perfusion
Prevents hypovolemic shock and organ failure.
5. C — Lactated Ringer’s
Most closely matches extracellular fluid losses in burns.
6. C — 20 minutes
Minimum irrigation for chemical burns.
7. C — Petroleum products
Tar is lipophilic; oil-based substances dissolve it.
8. B — Premotor cortex damage
Primitive reflexes return when cortical inhibition is lost.
9. B — Upper motor neuron lesion
Babinski = pyramidal tract dysfunction.
10. B — Frontal lobe
, Leigh
Frontal lobe damage causes release of primitive reflexes.
11. B — Dementia/cortical injury
Sucking reflex returns with advanced cortical damage.
12. B — 2–4 mL × TBSA × kg
Standard Consensus Formula.
13. C — Restlessness + hypothermia
Early burn shock shows anxiety and vasoconstriction.
14. B — 50%
Half of total volume is given in the first 8 hours.
15. C — Urine output
Most reliable indicator of adequate resuscitation.
16. C — 100% O₂ NRB
Immediately displaces CO from hemoglobin.
17. B — Escharotomy
Relieves constriction preventing chest expansion.
18. B — Inadequate perfusion
Universal feature of all shock types.
19. C — Low blood volume
Blood or fluid loss decreases perfusion.
20. C — Pump failure
Cardiogenic shock = ineffective cardiac output.
21. D — Cardiogenic
NUR 155 Exam 3 | Shock, Burns, Neuro & SCI – Answer
Key + Short Rationales (125 Questions)
1. B — T6 or above
Stimuli below T6 typically do not trigger AD; T6 and above leads to loss of
sympathetic control.
2. B — Full bladder/fecal impaction
AD is triggered by noxious stimuli such as distention.
3. B — Bradycardia + hypertension
Hallmark sign: massive vasoconstriction → ↑BP + reflex ↓HR.
4. B — Maintain organ perfusion
Prevents hypovolemic shock and organ failure.
5. C — Lactated Ringer’s
Most closely matches extracellular fluid losses in burns.
6. C — 20 minutes
Minimum irrigation for chemical burns.
7. C — Petroleum products
Tar is lipophilic; oil-based substances dissolve it.
8. B — Premotor cortex damage
Primitive reflexes return when cortical inhibition is lost.
9. B — Upper motor neuron lesion
Babinski = pyramidal tract dysfunction.
10. B — Frontal lobe
, Leigh
Frontal lobe damage causes release of primitive reflexes.
11. B — Dementia/cortical injury
Sucking reflex returns with advanced cortical damage.
12. B — 2–4 mL × TBSA × kg
Standard Consensus Formula.
13. C — Restlessness + hypothermia
Early burn shock shows anxiety and vasoconstriction.
14. B — 50%
Half of total volume is given in the first 8 hours.
15. C — Urine output
Most reliable indicator of adequate resuscitation.
16. C — 100% O₂ NRB
Immediately displaces CO from hemoglobin.
17. B — Escharotomy
Relieves constriction preventing chest expansion.
18. B — Inadequate perfusion
Universal feature of all shock types.
19. C — Low blood volume
Blood or fluid loss decreases perfusion.
20. C — Pump failure
Cardiogenic shock = ineffective cardiac output.
21. D — Cardiogenic
