Tomorrow's window opens at 4:30 and closes at 9:00. Sixteen visits on the board. Seven aides who can work.
Four and a half hours. In October I get six. In August I'll have three, maybe less. Right now four and a half is what I've got, and sixteen visits is what I need.
Seven aides out of twenty-two. I sent the availability form three weeks ago. Tomorrow's the Fourth. I can't blame anyone.
I pull up the grid on my left screen. Client name, address, service type, time slot, aide assignment. Sixteen rows. Most of the aide column blank. Right screen has the map with drive times that auto-adjust for surface conditions after 9 AM, but I won't need that part. Everything I'm building tonight fits inside the window or it doesn't go.
METRO's running Sunday service tomorrow. On a Friday. That matters for two of my aides and three clients who use METROLift, which is closed entirely. I flagged the METROLift clients for self-transport or family pickup. Two confirmed. One didn't answer.
Outside, someone's shooting off fireworks. It's barely dark.
I start with the ones that solve themselves.
Mr. Tran on Bellaire gets Dani. She lives eight minutes from him, drives her own car, speaks Vietnamese, has been seeing him twice a week for longer than I've been at this desk. Concentrator check, vitals, filter. I slot her at 4:45. She'll be in and out by 5:15.
Her second visit: Mrs. Washington on Calhoun. Fifteen-minute drive at that hour on a holiday. Wound care, forty-five minutes. Dani's done by 6:00 and I've still got her for a third.
Jerome gets the Westheimer clients. Mr. Adeyemi at 5:00, Mrs. Patterson at 6:00. Both ground floor, both straightforward, twelve minutes apart. I don't worry about Jerome.
Crystal takes the two on Bissonnet. She needs to be finished by 9:15 because her daughter's morning session starts at 10 and there's nobody else to drive her. Afternoon session's been suspended since June, so if Crystal's late, her daughter sits in a parking lot. I slot Crystal at 5:30 and 6:45. Tight but clean. She knows.
Eight visits covered by four aides. I eat the last of my rice and open the next set.
Tomoko gets Mrs. Nakamura on Fondren. Japanese-speaking, insulin management, needs someone who can read the pump interface. Tomoko's the only aide I have for that. I put her at 5:00 and give her Mrs. Collins on South Main at 6:15. Mobility assist. Tomoko's done by 7:30.
Ten visits covered. Six to go. Two aides left.
Marisol speaks Spanish. Experienced, cleared for oxygen clients, good with patients who get anxious. She takes the bus. Sunday schedule on the 4 Beechnut means I need to check her first trip. I pull up the route. From her stop, first bus gets her to Hillcroft and Bellaire by 5:18. If it runs on time.
Luz speaks Spanish and has her own car. Four months with us. Patients like her. She's careful, shows up early, asks good questions. She hasn't been cleared for oxygen clients yet. Her competency review is next Tuesday.
Six days from now.
Two Spanish-speaking aides. Six remaining clients. Three of the six need Spanish. Two of those three are on oxygen.
Concentrator clients are the ones I schedule first and worry about last. Or the other way around. Their equipment runs on wall power. If the grid hiccups, the unit alarms. If the unit alarms and nobody's there, an old woman is alone in the dark with a machine screaming at her. In July the grid doesn't hiccup often. It just works harder than it should, and so does everything plugged into it.
I pull up Mrs. Garza's file. Her care plan has a note from last July, flagged to repeat annually: Pt reports increased anxiety during fireworks. Requests early AM check 7/4 and 7/5. Verify O2 equipment function, check backup cylinder status, assess sleep quality.
A firework goes off outside. A big one. The building hums.
Mrs. Garza is seventy-eight and lives alone in a ground-floor apartment on Rampart. Her stationary concentrator runs on wall power. No internal battery. If the power blinks, the unit alarms, and she's alone with an alarm going off in the dark on a night when the sky is already exploding.
I slot Marisol at Mrs. Garza's at 5:30. Bus gets her to Hillcroft by 5:18, twelve-minute walk. Forty-five-minute visit. Out by 6:15.
Marisol's second: Mrs. Delgado on Chimney Rock. Spanish, concentrator check, vitals, medication review. Ground floor. Twenty-minute walk from Garza's. I slot her at 6:45. Done by 7:15.
Can Marisol take a third? I look at the map. Her next possible client is across Westpark. On foot, that's forty minutes before 9, longer after. The surface-loss calculator doesn't apply inside the window, but Marisol knows what I know: you don't want to be walking at 9:05 and find out the estimate was optimistic. She'd arrive at 7:55. Visit takes forty-five minutes minimum. She's finishing at 8:40 if nothing runs long, and she still has to get off the pavement before the window closes.
The margin is twenty minutes. That's assuming the bus ran on time two and a half hours earlier and every visit stayed on schedule and nobody needed an extra few minutes.
I don't build schedules on assumptions like that.
Luz gets the three remaining Spanish-speaking clients who aren't on oxygen. Mrs. Fuentes at 5:00, Mr. Ochoa at 6:15, Mrs. Sandoval at 7:45. All ground floor, all within her competency, all in car range.
I give Dani her third visit. I give Tomoko her third. I shift Jerome's timing by ten minutes to pick up Mrs. Patterson's neighbor, who called in yesterday with a new referral.
Fifteen visits assigned. I scroll down the grid. Fifteen rows with names in the aide column.
One row blank.
I've been looking at it for a while.
Her name is Gloria Reyes. Hillcroft area. Fourth floor, no elevator. The building is an older complex, three stories of concrete with a fourth floor that I think was added later. The stairs are narrow and there's no landing light above the second floor. I know this because three different aides have mentioned it in their visit notes over the past three years.
Fourth floor, no elevator, no cooling above the second floor. Her unit has a window unit that her nephew installed. The care plan notes say it keeps the room around eighty-two when it's running. That's the good number.
Mrs. Reyes has a stationary concentrator. Wall power, no battery backup. Her file still has a line from the original care plan that says Preferred visit time: afternoon. Nobody's updated it because there's nothing to update it to. There hasn't been an afternoon visit in years. There's the window, and there's the note I'm about to write.
I've talked to her on the phone maybe a dozen times. She calls when she has questions about her schedule, and she always apologizes for calling, and I always tell her that's what we're here for. She has a voice like my grandmother's. Not my grandmother specifically. Just that register. Careful and a little formal and trying not to be a bother.
I need an aide who speaks Spanish, is cleared for oxygen, and can handle four flights of stairs with a supply bag.
Marisol meets the first two. But she's on foot tomorrow, and I've already got her at Garza's at 5:30 and Delgado's at 6:45. Earliest possible arrival at Mrs. Reyes's building is 7:55. The stairs add fifteen minutes. An hour visit on the fourth floor. She'd be finishing at 9:10.
Ten minutes past the window.
I could ask Marisol to start earlier. Get to Garza's by 5:15 instead of 5:30. But that means she's at a bus stop at 4:45 on a holiday morning, hoping the Sunday schedule holds, and if the bus is eight minutes late she misses Mrs. Garza entirely. I'm not trading a sure visit for a maybe.
Luz speaks Spanish and has a car. She could be at Mrs. Reyes's building at any time I need. But Luz isn't cleared for oxygen. Mrs. Reyes's concentrator has no battery backup. If something's wrong with it, if it's alarming or the filter's clogged or the flow seems off, Luz isn't trained to assess that. And on the fourth floor with no cooling to speak of, the concentrator is working harder than it would on the ground floor. I'm not sending someone unqualified for that.
Jerome could handle the stairs. He doesn't speak Spanish.
I could split the visit. Send Luz for the medication compliance and Jerome for the equipment check. Two aides, one client. But Jerome's booked through 7:15 and I just gave him a third. Luz is stacked until 8:45. By the time either of them could get to Hillcroft, the window's closing.
I could call one of the fifteen aides who said they couldn't work tomorrow. It's 9:20 on July 3rd. I could pick up the phone and ask someone to wake up at 4 AM on the Fourth of July.
I've done that before. Sometimes someone says yes. Mostly the phone rings through, or they say they're sorry, they're in Galveston, they're with their kids, they picked up a shift at their other job.
I look at Mrs. Reyes's row. The aide column is blank.
Her concentrator is plugged into the wall right now. It's running. She's fine tonight. Tomorrow the window will open at 4:30 and close at 9:00 and fifteen people will get their visits and Mrs. Reyes will be on the fourth floor with her concentrator and her narrow stairs and nobody coming.
I click into her file and open the scheduling notes.
7/4 — Unable to assign within window. Constraints: Spanish required, O2 clearance required, 4th floor no elevator. No aide available meeting all three. Will reattempt 7/5 assignment. Contact supervisor re: Luz O2 clearance timeline.
I save it. The system timestamps the note.
The summary screen shows fifteen of sixteen visits assigned. The completion number sits at the top in yellow. Anything below 95% flags yellow.
I send the morning confirmations to the seven aides who said yes. Dani at 4:45. Jerome at 5:00. Tomoko at 5:00. Luz at 5:00. Crystal at 5:30. Marisol at 5:30. Their phones will buzz before they're asleep, and tomorrow they'll get up in the dark and go.
Outside, another firework. Then a long silence. Then another.
On Saturday I'll build the schedule again. The window will be the same.
- Heat as workplace regulation: OSHA's proposed Heat Injury and Illness Prevention standard completed its public hearing in July 2025 but remains in the proposed-rule stage, leaving heat-scheduling authority largely with individual employers rather than federal mandate.
- Hospitalizations could double: A GeoHealth study reported by the Guardian projects that annual U.S. heat-related emergency visits or hospitalizations could rise from roughly 109,000 to as many as 237,000 by 2040, with annual costs exceeding $1 billion.
- Holiday transit gaps compound: Houston METRO's Independence Day 2026 schedule runs all Friday service on Sunday-level frequencies, with METROLift reservations and customer service closed entirely on July 3.
- Electricity-dependent care at scale: The HHS emPOWER program tracks more than 4.6 million Medicare beneficiaries who live independently and rely on electricity-dependent medical equipment, making grid reliability a direct healthcare variable during heat events.