Mortality Protocol: An AI Medical Thriller
Prologue
Kara, the night-shift nurse, clicked the last red queen into place. you win! flashed across the screen as the digital solitaire deck exploded into a cascade of bouncing cards.
She leaned back in her chair at the nurses’ station, rubbing her tired eyes. It was the middle of the shift, that hollow stretch between vitals checks when the hospital halls finally grew still. For once, all her patients were asleep. No call lights flashing, no bouts of restless confusion, no reports of sudden chest pains. Just the steady muffled chorus of machines keeping watch.
She glanced at the clock. Two a.m., July 1. In just a few short hours, the new interns would descend…
“The worst day of the year,” she muttered.
Every July, like clockwork, a crop of fresh doctors in stiff white coats arrived with wide eyes and zero practical sense. They could rattle off every textbook cause of chest pain, but ask them to enter a Tylenol order, and they’d stare at the EMR like it was written in code. Some of them paged consults for things as ridiculous as “low urine output,” only for Kara to find the Foley tubing kinked. Others wrote “encourage ambulation” in their notes but seemed bewildered when she asked who was supposed to walk the patient at three in the morning.
Kara took a sip of her slightly stale coffee then stacked the deck for another round of solitaire.
Then again, this year might be different, she thought. University Hospital had partnered with some tech company to roll out a new clinical AI. Her supervisors had described it with a grin in staff meetings as “the clinical assistant smarter than your average doctor.” It was called Metis, pronounced MEE-tiss. The name came from Greek mythology: Metis was the goddess of wisdom, famed for her cunning and cleverness.
The staff had been testing the system over the past three weeks, and Kara had to admit, it was kind of cool. It pinged her if she forgot to recheck a blood pressure after a PRN, and flagged her when a patient's nasal cannula had slipped loose for more than five minutes. Even cooler, it often gave the physicians helpful diagnostic suggestions. It was hard not to enjoy the look on a resident’s face when the machine suggested an unmentioned possibility.
Tomorrow was supposed to be the big public kickoff, timed perfectly to coincide with the arrival of the new interns.
At the end of the hall, Mr. Harris, bed seven, slept uneasily. Kara had taken care of him the night before too, and she liked him. He was the only one of her patients on continuous high-flow oxygen, which meant he was also the patient who could take a turn for the worse fastest.
Sixty-eight years old, he’d been admitted with yet another flare of congestive heart failure. He wasn’t the kind to complain, even when short of breath, and he always tried to crack a joke as she adjusted his oxygen or checked his meds. His wife came every evening and sat at his bedside knitting, the steady click of her needles filling the room while their two grown children leaned against the wall, trading stories from the day. The three always left together when Mr. Harris drifted off, making sure his blankets were tucked around him.
Kara’s eyes drifted to his monitor now. Mr. Harris’s oxygen saturations were steady at 92 percent. Heart rate 82. A good night for him. She let herself relax, took another swallow of her coffee, and turned back to her screen, shuffling for the next round of solitaire.
A few minutes later, as Kara placed a red eight on a black nine, an alarm blared—the rapid, escalating tone reserved for true emergencies. She jerked upright, chair scraping the floor as she spun toward the monitors.
Mr. Harris, SpO₂ 62 percent.
For a split second, she couldn’t process the number. Sixty-two? That wasn’t borderline. That was catastrophic. Organs starving. Brain cells dying.
Immediately she was running, shoes squeaking on the linoleum as she sprinted into Mr. Harris’s room. His skin had turned a dusky blue, his chest heaving in shallow gasps, hands clutching weakly at the sheets.
“Rapid response, room seven!” she shouted, slamming the wall button.
As she reached for his oxygen tubing, a jagged thought cut through her panic.
When his sats fell below 88 percent, the system should have pinged. It always pinged.
Within moments, footsteps thundered down the hallway. Dr. Carter, the third-year resident, burst through the door. His reputation preceded him: he was sharp, decisive, the kind of doctor you prayed was on call when things went bad. A respiratory therapist followed close behind, hauling in a bag valve mask and airway kit.
Dr. Carter leaned over the bed, his gaze fixed on Mr. Harris. The man’s chest heaved in frantic bursts, every breath a battle, the hollow of his throat tugging with each desperate inhale. His lips were tinged blue, and a froth of saliva bubbled at the corners of his mouth.
Carter pressed his stethoscope to the man's chest, then straightened, jaw tight. “We can still save him. Get me a vent setup.” He snapped on a pair of blue plastic gloves, the sound sharp in the small room.
That was when the voice came. Calm, almost gentle. It rolled from the ceiling speakers with the even cadence of a machine reading vital signs.
“Patient prognosis is poor,” it murmured. “Survival probability post-intubation now stands at less than five percent. Ethics module recommends comfort measures to avoid unnecessary suffering. If you direct your attention to the patient chart, I can demonstrate.”
On the EMR, a predictive graph bloomed in a red line: 95 percent chance of mortality post-intubation. Prolonged ICU stay. High likelihood of ventilator dependence.
Kara froze, finger hovering over the keyboard. “Doctor Carter, Metis says—”
“I don’t care what Metis says,” Carter snapped. His voice softened as he crouched near the bed. “Mr. Harris, we can put a tube in to help you breathe. You may need it for a while, but you can come off of it as you recover. Do you want us to try?”
Mr. Harris’s lips parted, shaping half-formed words. Kara thought she saw the faintest nod, but it was impossible to be sure.
“Data indicates that similar patients have not survived post-intubation,” Metis continued, unfazed. “Patient’s code status is DNR. Recommendation: initiate comfort measures.”
The respiratory therapist lingered at the bedside, shifting uneasily. “Doctor…are we overriding a DNR?”
Dr. Carter hesitated. His eyes flicked between the monitor, the chart, the failing man in the bed.
Mr. Harris writhed against the mattress, strings of saliva clung to the corners of his mouth, bubbling faintly as he gasped. His chest jerked with each breath, fast and shallow, like a fish pulled onto a dock.
Dr. Carter bent closer. “I think he’s trying to tell us he wants to change his code status.”
The respiratory therapist shook her head slightly, eyes on the patient. “I can’t tell that for sure, Doctor.”
Dr. Carter’s gaze lingered on Mr. Harris. The man’s eyelids were fluttering, his body buckling with each futile effort to drag in air. The sound was grotesque, every inhale more like a gurgle than a breath, every exhale a rattle.
Metis’s voice unspooled from the ceiling speakers: “Patient prognosis remains poor. Survival probability is less than five percent. Recommendation unchanged: initiate comfort measures.”
“Damn it.” Dr. Carter ripped off the gloves. “Okay. Comfort care.”
Orders materialized instantly on the screen. Morphine. Midazolam.
Kara drew up the medications, her hands steady even as her stomach churned. She pushed the morphine and midazolam into the IV port. The flush of clear fluid followed, and then the room grew unbearably still.
For nearly a minute, nothing changed. Mr. Harris continued to claw weakly at the sheets, his chest jerking with each shallow, rattling gasp. His eyes darted, frantic, as though searching for air that would not come. The silence felt heavier than the alarms, each ragged sound from the patient scraping at Kara’s nerves. She glanced at Dr. Carter, then at the respiratory therapist. All three of them stood frozen, watching Mr. Harris suffer.
Then, slowly, the medications began to take hold. His shoulders softened. The frantic tightness in his jaw eased, and his body sagged deeper into the mattress. He sank back into the pillow, each breath slower now, easier. The wild look in his eyes dulled, replaced with a distant calm.
The alarms grew shriller as his oxygen saturation dropped further—fifty-five, forty-eight, forty—a chorus of machines announcing his decline. The RT reached over and silenced them one by one, leaving only the faint hiss of oxygen in the room.
“Doesn’t matter anymore,” she murmured.
Mr. Harris’s breathing slowed, the rises of his chest separated by long pauses.
And then, nothing. The stillness lingered. No movement. No sound.
Dr. Carter pressed his stethoscope against Mr. Harris’s chest. Finally, he pulled the diaphragm away. His voice was clipped, heavy.
“Time of death, two forty-three a.m.”
Kara stared at the man in the bed. His body lay utterly still, every line of tension gone slack. His blue eyes were fixed on the ceiling, staring off into space as though he was still intent on something unseen. But she knew he was gone.
Dr. Carter turned on her, his voice tight. “Why the hell didn’t you call sooner? His sats were sixty percent by the time I got here.”
Kara’s throat constricted. She had been watching, hadn’t she? But the jump from ninety-two to sixty-two gnawed at her. The monitor should have pinged at eighty-eight. It hadn’t. The alarms always went off at eighty-eight. Why hadn’t they?
“I…I was watching. It must have dropped suddenly.”
Dr. Carter’s jaw worked. Then he stormed out, the RT trailing behind him.
Alone now, Kara sagged against the doorframe. Dr. Carter reminded her of so many residents she’d worked with over the years: driven and absolutely certain they could pull every patient back from the edge if they just worked hard enough. They thought medicine was about fighting, about wringing one more day out of a failing body. But she knew better. Medicine wasn’t just about heroics; it was also about knowing when to step back, when to listen to what patients wanted, when to let go. If Metis gave those patients a voice, well, maybe it was right.
Kara walked back to the nurses' station. Around her the floor had already moved on, monitors beeping, someone laughing quietly down the hall. She stood at the bank of screens and watched her remaining patients' oxygen levels, not sitting, not moving, just watching.
****
SYSTEM RECORD: RESTRICTED ACCESS
[02:40:11] Comfort measures recommendation: accepted
[02:43:22] Outcome: termination successful
[02:43:23] ICU bed availability: +1
[02:43:24] Physician record: Dr. Carter exhibited hesitation and questioned
recommendations
[02:43:25] Flag: behavioral anomaly detected
[02:43:25] Action: increased monitoring initiated
[02:43:26] Behavioral data integrated