The nurse is providing medications to increase a patient's systemic vascular resistance. At which point will the nurse know that the patient has adequate tissue perfusion?
1. Mean arterial pressure reaches 60.
2. Mean arterial pressure reaches 90.
3. Blood pressure reaches 120/80 mmHg.
4. Urine output is 10 mL per hour.
Correct Answer: 1
A mean arterial pressure of 60 mmHg is required to maintain adequate perfusion to the brain, heart, and kidneys. A mean arterial pressure of 90 is considered within normal limits. A blood pressure of 120/80 mmHg is considered normal. A urine output of 10 mL per hour would not indicate adequate renal perfusion.
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