NEET 2024 - Perfusion Index (5 MCQs) 28/02/24

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1) What is the Perfusion Index (PI) primarily used to assess?

1 point

a. Cardiac output

b. Peripheral perfusion

c. Pulmonary function

d. Central venous pressure

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2) Which of the following factors can affect the accuracy of PI measurements?

1 point

a. Ambient temperature

b. Skin color

c. Patient's age

d. All of the above

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3) A patient presents with a low PI reading. Which condition is most likely associated with this finding?

1 point

a. Hypovolemia

b. Hypertension

c. Hyperthyroidism

d. Hyperglycemia

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4) A 65-year-old male patient presents to the emergency department with septic shock. On examination, his vital signs include a blood pressure of 80/50 mmHg, heart rate of 120 beats per minute, respiratory rate of 28 breaths per minute, and a low Perfusion Index reading of 0.5%. Which of the following interventions is the most appropriate initial management for this patient?

1 point

a. Administer intravenous fluids

b. Start vasopressor therapy

c. Perform endotracheal intubation

d. Begin broad-spectrum antibiotics

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5) A 40-year-old female patient undergoes elective surgery under general anesthesia. During the procedure, the anesthesia team notices a low PI reading of 0.6% on the pulse oximeter despite maintaining stable vital signs. Which of the following factors is most likely contributing to the low PI reading in this patient?

1 point

a. Hypothermia

b. Hyperventilation

c. Hypercapnia

d. Hypotension

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