Which of the following is the most accurate assessment of tissue perfusion in a patient in shock?
Pupil response, pulse pressure, urine output.
Level of consciousness, urine output, lactate level
Blood pressure, pulse, respirations.
Breath sounds, heart rate, pupil response
The Correct Answer is B
Assessing tissue perfusion is crucial in evaluating the adequacy of oxygen and nutrient delivery to the body's tissues. While multiple factors contribute to tissue perfusion, the options provided in choice B are key indicators:
Level of consciousness: Altered mental status or changes in the patient's level of consciousness can be a sign of impaired cerebral perfusion, which reflects overall tissue perfusion.
Urine output: Monitoring urine output provides information about renal perfusion and kidney function. Decreased urine output can be indicative of inadequate tissue perfusion.
Lactate level: Lactate is a by-product of anaerobic metabolism that accumulates when there is insufficient oxygen delivery to tissues. Elevated lactate levels indicate tissue hypoperfusion and cellular oxygen debt.
A. Pupil response, pulse pressure, and urine output in (option A) are incorrect because While pupil response and pulse pressure may provide some information about perfusion, they do not encompass a comprehensive assessment of tissue perfusion. Additionally, assessing urine output is important, but it alone may not provide a complete picture of tissue perfusion status.
C. Blood pressure, pulse, and respirations in (option C) are incorrect because Blood pressure, pulse, and respirations are important vital signs to monitor, but they do not solely indicate tissue perfusion. Hypotension, for example, can be a late sign of inadequate tissue perfusion.
D. Breath sounds, heart rate, and pupil response in (option D) are incorrect because: Although breath sounds and heart rate can be affected by changes in tissue perfusion, they are not specific or comprehensive indicators of tissue perfusion status. Pupil response alone does not provide a complete assessment of tissue perfusion.
Therefore, the most accurate assessment of tissue perfusion in a patient in shock involves evaluating the level of consciousness, urine output, and lactate levels.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Norepinephrine is a potent vasoconstrictor and inotropic agent commonly used to increase blood pressure in cases of hypotension or shock. However, if the infusion rate is too high, it can lead to excessive vasoconstriction and potentially compromise organ perfusion.
A heart rate of 58 beats/min suggests bradycardia, which can be an indication of excessive vasoconstriction caused by a high dose or rate of norepinephrine infusion. Excessive vasoconstriction can reduce cardiac output and worsen tissue perfusion.
A. Mean arterial pressure is 55 mm Hg in (option A) is incorrect because A mean arterial pressure of 55 mm Hg may be within an acceptable range for a patient receiving norepinephrine infusion, depending on the patient's baseline blood pressure and clinical condition.
B. Systemic vascular resistance (SVR) is elevated in (option B) is incorrect because An elevated SVR indicates increased peripheral vascular resistance and can be a desired effect of norepinephrine infusion to improve blood pressure and perfusion.
C. Pulmonary artery wedge pressure (PAWP) is low in (option C) which is incorrect because A low PAWP may indicate decreased left ventricular preload, which can be a desired effect of norepinephrine infusion to reduce fluid overload in certain clinical conditions.
It is important for the nurse to carefully monitor the patient's hemodynamic parameters, including blood pressure, heart rate, and organ perfusion when titrating norepinephrine infusion to ensure optimal dosing and minimize potential adverse effects. If concerns arise regarding the infusion rate, the healthcare provider should be promptly notified for further evaluation and adjustment of the treatment plan.
Correct Answer is C
Explanation
In septic shock, one of the key goals of management is to restore and maintain adequate intravascular volume. However, in this case, the patient's urine output is low (30 mL/hr for the past 3 hours), suggesting inadequate renal perfusion and potential fluid overload.
Administering additional normal saline at an increased rate (250 mL/hr) without addressing the low urine output could potentially exacerbate fluid overload and further compromise the patient's condition.
A. Administer hydrocortisone (Solu-Cortef) 100 mg IV in (option A) is incorrect because: Hydrocortisone is commonly used in septic shock to help stabilize blood pressure and modulate the inflammatory response.
B. Giving PRN furosemide (Lasix) 40 mg IV in (option B) is incorrect because Furosemide, a loop diuretic, can be administered as needed to address fluid overload or to increase urine output if there is evidence of volume overload.
D. Titrate norepinephrine (Levophed) to keep systolic BP >90 mm Hg in (option D) is incorrect because: Norepinephrine is a vasopressor commonly used in septic shock to increase systemic vascular resistance and maintain adequate blood pressure.
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