Immunology was Cameron's field; he stood back and let her get on with it. Luthor's bodyguard stood back, too, looking alert and ready to spring. Chase tore his attention away from her; he had to be ready to help the moment that something went wrong. What good is a doctor if he's too busy ogling the help to be of any use?
As Cameron brought the bullet towards Clark, it began to glow with an unearthly (literally! Chase thought with a shudder) green light. Clark groaned and closed his eyes, seeming to shrink away from the evil-looking radiation.
"That's enough!" Luthor said.
"It's less than one second's exposure," Cameron argued, continuing to advance.
"It's okay," Clark choked out hoarsely.
Luthor gestured to Mercy, and she holstered a small dull black revolver. Chase hadn't even noticed her draw it.
Just as the bodyguard was getting her gun stowed away, Clark suddenly started to have convulsions. Chase rushed to the bed, only to be thrown to the ground as Clark's uncontrolled flailing knocked Cameron into him.
The kryptonite flew up into the air and landed on Clark's neck; the lead foil thudded to the floor. Chase rolled out from under Cameron and got up, but Mercy had been diving for the bullet and was knocked into him as well.
Struggling to his feet a second time, Chase could hardly believe how horribly the alien mineral affected Clark. He stood still for a split-second, stupefied by the appalling sight.
Wading straight into those powerfully convulsing limbs again seemed counter-productive; so he pulled Mercy clear from Cameron and up, and she let him. They were both at Clark's side in an instant, Mercy finally (although the whole fiasco had really only taken a few seconds from beginning to end) re-wrapping the lethal missile in the lead foil she'd retrieved from the floor, Chase checking the patient's breathing and heartbeat.
The horribly distended, blackened veins receded into the skin as he watched. The convulsions ceased. Chase cleared Clark's airway (desperately trying not to think about how easily he could lose a finger) and was reassured to find that Clark could breathe on his own. He adjusted the oxygen cannula, which had been displaced during the fracas.
"Clark?" No response. "Clark, can you hear me?" Nothing. Chase got out his penlight and checked Clark's pupils. They were okay. The O2 sats were down to 94 -- not that bad. He could hear Cameron getting up behind him. "All right. Patients are frequently unconscious after a seizure. It's no reason to worry," he said, almost to himself.
"Get out," Luthor said. He was at the window, for some reason –- oh. The blinds had previously been closed all around for privacy, but yellow sunlight was supposedly Superman's source of strength. He must have-–
"Get Out!" Luthor repeated.
Chase realized he was in danger. "Right, well, I'll just go get those lab results," he ventured, hands frantic to make sure the O2 tube was really secure before Luthor killed him dead. Cameron was already leaving.
"GET OUT!" Luthor roared.
Chase fled.