On this page
What intensive care actually is
An intensive care unit is defined less by its equipment than by its attention. Patients are monitored continuously rather than checked at intervals: heart rhythm, oxygen saturation, blood pressure, urine output and breathing are tracked minute by minute, so deterioration is caught in minutes rather than hours. Nursing ratios are far higher than in a general ward, a doctor is immediately available, and the unit holds equipment for supporting breathing and circulation. Patients are admitted when their condition is unstable or could become so quickly — after a stroke or heart attack, during severe infection, in a diabetic crisis, after major surgery, or when an organ is failing.
Ventilator support explained
A ventilator is a machine that moves air in and out of the lungs for a patient who cannot do it adequately alone. Families often hear the word and assume the worst; it is worth stating clearly that a ventilator is a support, not a verdict. It takes over the work of breathing so the body’s energy goes to fighting the illness, and it maintains oxygen while the real problem — pneumonia, sepsis, a metabolic crisis, a brain injury — is treated. Some patients need it for a day, some for weeks. Coming off it (“weaning”) happens gradually as the underlying illness improves and the patient’s own breathing strengthens. Most patients on ventilators are sedated so they are not distressed by the tube.
Diabetic emergencies in intensive care
Several diabetes-related conditions bring patients here. Diabetic ketoacidosis — very high sugar with dehydration, vomiting, rapid breathing and drowsiness — needs careful intravenous fluids, insulin and electrolyte correction, monitored closely because the correction itself must be controlled. Severe hypoglycemia with unconsciousness or seizures needs urgent glucose and observation. Severe infections, especially of the foot, can lead to sepsis in people with diabetes and may need intravenous antibiotics, surgical drainage and organ support. And people with diabetes face higher risks of stroke and heart attack, both of which are managed here. In every case, knowing the patient’s usual insulin regimen, kidney function and medicines shapes safe treatment — which is the practical advantage of an intensivist who is also their diabetologist.
What families should expect
The first hours are busy and can look alarming: lines, monitors, alarms that sound frequently and usually mean nothing dramatic. Expect the team to ask the same questions more than once — medicines, allergies, when symptoms started — because accuracy matters more than repetition does. Progress in intensive care is usually measured in days rather than hours, and it is rarely linear; a better morning can be followed by a difficult night without meaning the plan has failed. Ask for explanations in plain language and ask again if the first explanation did not land. Nominate one family member as the main contact for updates, which prevents contradictory versions circulating among relatives.
What to bring
All current medicines in their strips or boxes, including tablets from other doctors and anything bought over the counter — this is the single most useful thing a family can provide. Recent reports and discharge summaries, or photographs of them. A note of allergies, past illnesses and previous surgeries. Identification and any insurance or scheme documents. If the patient has diabetes, the insulin regimen and recent sugar readings. And practical items for the family’s own endurance — a charged phone, water, and someone to share the waiting with.
Common questions about equipment and procedures
Several routine interventions worry families more than they need to. A central line is a drip placed into a large vein in the neck, chest or groin, allowing medicines that cannot go through an ordinary drip and accurate pressure monitoring. A catheter measures urine output, which is one of the most reliable indicators of whether organs are receiving enough blood. Dialysis may be used temporarily when kidneys fail, and kidney function frequently recovers afterwards. Tracheostomy — an opening in the windpipe — is sometimes done when ventilation is needed for longer than a couple of weeks; it is more comfortable than a tube through the mouth and is usually reversible. Sedation keeps ventilated patients comfortable and is lightened as they improve, which is why a patient may seem unresponsive one day and awake the next.
Delirium and recovery after critical illness
Confusion in intensive care is common, distressing to witness, and usually temporary. Patients may not recognise relatives, may see things that are not there, or may become agitated — a state called ICU delirium, driven by serious illness, disturbed sleep, unfamiliar surroundings and medicines. It is not a sign of permanent mental damage. Familiar voices, a calm presence, having spectacles and hearing aids available, and keeping day and night distinct all help. Recovery after intensive care also takes longer than families expect: profound weakness, poor appetite, disturbed sleep and low mood are usual for weeks after discharge, and improve steadily with nutrition, gentle activity and time.
Decisions and honest conversations
Intensive care sometimes involves decisions that are difficult to make and harder to hear: whether to escalate support, whether a treatment is likely to help, and what a patient would have wanted. These conversations are held with the family, in plain terms, with the medical facts explained rather than implied. Questions are welcome — including the uncomfortable ones about likely outcomes. What families deserve at that point is clarity rather than false comfort, and time to consider rather than pressure. Where recovery is expected, the plan for step-down to a ward and eventual discharge is explained too, along with the follow-up that prevents a second admission.
After the ICU — follow-up care →Diabetes care with Dr. Ruskin →
Frequently asked questions
Continuous monitoring of heart rhythm, oxygen, blood pressure and circulation; one nurse to very few patients; equipment for breathing and circulatory support; and immediate availability of a doctor. Ordinary wards check patients periodically — intensive care watches them continuously.
No. A ventilator supports breathing while the underlying problem — infection, a metabolic crisis, a stroke, a heart problem — is treated. Many patients are weaned off it as they improve. Outcomes depend on the illness and the patient's overall condition, not on the machine.
It varies enormously — from a day for a patient stabilised after a diabetic crisis to weeks for severe infection or organ failure. Patients move to a normal ward as soon as they no longer need continuous monitoring or support.
Bring all current medicines and recent reports, a list of allergies and past illnesses, and identification. Keep one family member as the main contact for medical updates, ask questions when the team explains things, and rest — recovery is often measured in days, not hours.