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The physician orders a Lidocaine drip to infuse at 2 mg/min. The drug is available as 2 gm in 500 ml of fluid. Solve for ml/hr.
Answer and Explanation

The Correct Answer is ["3"]

Lidocaine infusion calculation:

  • Lidocaine dose ordered: 2 mg/min
  • Lidocaine concentration: 2 gm in 500 mL
  • Conversion factor: 1 mg = 1000 mcg

Calculations:

  • Convert Lidocaine dose to mcg/min: 2 mg/min × 1000 mcg/mg = 2000 mcg/min
  • Lidocaine concentration is 2 gm in 500 mL, which equals 4000 mcg/mL.
  • Calculate mL/hr:
    • mL/hr = (2000 mcg/min × 60 min/hr) / 4000 mcg/mL = 3 mL/hr

Answer:

  • mL/hr: 3 mL/hr


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Explanation

A. "DIC is characterized by an elevated platelet count." Incorrect; DIC typically causes thrombocytopenia.

B. "DIC is caused by abnormal coagulation involving fibrinogen." DIC involves widespread activation of coagulation factors leading to the formation of microthrombi and consumption of clotting factors like fibrinogen. Understanding the pathophysiology helps in managing DIC effectively.

C. "DIC is controllable with lifelong heparin usage." Heparin is not used in DIC management due to the risk of bleeding.

D. "DIC is a genetic disorder involving a vitamin K deficiency." DIC is not genetic and is not caused by vitamin K deficiency.

Correct Answer is B

Explanation

A. "It's uncontrolled proliferative cell growth that is cancerous." Describes cancerous growth, not hypertrophy.

B. "It's the enlargement of an organ or tissue from the increase in cell size." Defines cellular hypertrophy accurately. Hypertrophy involves an increase in the size of cells, leading to the enlargement of tissues or organs, often in response to increased workload or stimulation.

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