Jessicа Thоmpsоn is а 28-yeаr-оld G1P0 at 34 weeks gestation, admitted to the labor and delivery unit with a diagnosis of preeclampsia with severe features. Her admission vital signs are: BP 168/112 mm Hg, HR 92 bpm, RR 20, Temperature 98.6°F, SpO2 98% on room air. She weighs 82 kg. Lab results show: platelets 118,000/μL, AST 68 U/L, ALT 72 U/L, creatinine 0.9 mg/dL, and protein/creatinine ratio 0.6. She reports a persistent frontal headache and sees "floaters" in her vision. The provider orders medications to manage her condition and prevent complications. The provider orders the following: Labetalol 20 mg IV push over 2 minutes for acute blood pressure management. Available: Labetalol 100 mg/20 mL vial. How many mL should you draw up to administer the ordered dose?