Key Takeaways
- Pressure injuries are areas of damage to the skin and the tissue underneath.
- They happen when constant pressure or rubbing cuts off blood flow.
- These injuries are grouped into stages based on how deep the damage goes.
- You can prevent most cases by moving the person often and keeping their skin dry.
- Early detection is the most important way to stop an injury from getting worse.
What Are Pressure Injuries?
Pressure injuries are often called bedsores or pressure ulcers. They are localized areas of damage to your skin and the soft tissue underneath. These injuries usually happen over bony parts of your body. Common spots include your heels, ankles, hips, and the base of your spine.
When you spend a long time in one position, the weight of your body presses your skin against a surface. This surface might be a bed, a chair, or even a medical device. This pressure makes it hard for blood to reach the skin. Without blood, the skin cells do not get the oxygen they need. If the pressure stays for too long, the skin begins to die.
These injuries can be very painful. They can also lead to serious infections if they are not treated quickly. In aged care, managing these risks is a major part of your daily work. You must be able to spot the early signs to keep the person safe and comfortable.
How These Injuries Form
There are several ways that these injuries start. Understanding these causes helps you know what to look for when you check a person’s skin.
Constant Pressure
This is the most common cause. It happens when the skin is squeezed between a bone and a hard surface. This pressure stops blood from moving through the tiny vessels in the skin. If the pressure is not relieved, the tissue begins to break down.
Friction and Shear
Friction happens when the skin rubs against a surface, like bed sheets. This can scrape the top layer of the skin. Shear is slightly different. It happens when the skin stays in place, but the bone and muscle underneath move. For example, if a person slides down in a bed, the skin might stay stuck to the sheet while the body moves. This stretches and tears the blood vessels.
Moisture
Wet skin is more likely to get hurt. This moisture often comes from sweat or urine. When skin is wet for a long time, it becomes soft and weak. This makes it easier for pressure or friction to cause a deep break.
The Different Stages of Damage
Doctors and nurses use a staging system to describe these injuries. This helps everyone on the care team understand how severe the damage is.
Stage 1: Warning Signs
At this stage, the skin is still whole. It has not broken yet. However, it looks different than the skin around it. For people with light skin, the area might look red. For people with darker skin, it might look purple or blue. If you press on the spot, it does not turn white. The area might feel warmer or cooler than the rest of the body. It might also feel firm or mushy.
Stage 2: Skin Breaks
In Stage 2, the top layer of skin is lost. The injury looks like a shallow open sore or a scrape. It is usually pink or red and looks moist. Sometimes, it might look like a blister that is full of clear fluid. At this level, the damage is still near the surface.
Stage 3: Deep Damage
This is a more serious injury. The skin break goes through the top layers and reaches the fat underneath. The sore looks like a deep hole. You might see yellow tissue at the bottom of the wound. However, you cannot see muscle, tendons, or bones yet.
Stage 4: Severe Injury
This is the most dangerous stage. The damage is very deep. You can see muscle, tendons, or even bone at the bottom of the sore. These injuries take a very long time to heal. They also carry a high risk of bone infection.
Other Types of Damage
There are two other categories you should know:
- Unstageable: This is when the wound is covered by a thick layer of dead tissue. This tissue might be yellow, tan, or black. Because the dead tissue covers the hole, you cannot tell how deep it is.
- Deep Tissue Injury: This looks like a purple or maroon area of skin. It might also be a blood-filled blister. This happens when the tissue deep under the skin is damaged, even if the surface looks mostly okay.
Who Is Most at Risk?
Not everyone will get a pressure injury. However, certain factors make it much more likely. You should pay extra attention to people who have these issues:
- Limited Mobility: People who cannot move themselves in bed or a chair are at the highest risk. This includes people who are paralyzed or very weak.
- Poor Nutrition: Your body needs protein, vitamins, and water to keep skin strong. If a person does not eat or drink enough, their skin breaks more easily.
- Loss of Feeling: Some people have nerve damage. They may not feel the pain or discomfort that tells them to change positions.
- Age: As people get older, their skin becomes thinner and less stretchy. There is also less fat under the skin to act as a cushion.
- Medical Conditions: Problems like diabetes or heart disease can slow down blood flow. This makes it harder for the body to fix small skin tears.
Steps You Can Take for Prevention
Most pressure injuries can be stopped before they start. You must be proactive in your care.
Movement and Repositioning
The best way to prevent damage is to move the person often. If they are in bed, you should help them change positions at least every two hours. If they are in a chair, they should move every hour. Use pillows or foam wedges to keep bony parts from touching each other. For example, place a pillow between the knees to prevent them from rubbing.
Skin Care and Moisture
Keep the skin clean and dry. Use a mild soap that does not dry out the skin. When you wash the person, do not rub the skin too hard. Instead, pat it dry. Use a moisturizer to keep the skin from cracking. If the person has trouble with bladder control, change their pads or clothing as soon as they get wet.
Healthy Eating
Make sure the person gets enough to eat and drink. Focus on foods with high protein and plenty of fluids. If you notice they are losing weight or leaving food on their plate, report it to a supervisor. Good nutrition is a shield for the skin.
Using the Right Equipment
Special mattresses and seat cushions can help. These are designed to spread the person’s weight over a larger area. This reduces the force on any one spot. You should check these devices daily to make sure they are working correctly.
The Importance of Documentation
You must keep clear records of everything you see. If you notice a red spot, write it down immediately. Describe where it is, what color it is, and how big it is. This helps the medical team see if the injury is getting better or worse. Good records also prove that you are providing the right care.
FAQ
Can a Stage 1 injury be fixed? Yes. If you find a Stage 1 injury and remove the pressure right away, the skin can return to normal quickly.
How do I know if an injury is infected? Look for signs like pus, a bad smell, or increased swelling. The person might also have a fever. If you see these signs, tell a nurse or doctor immediately.
Does everyone in a wheelchair get these sores? No. Many people use wheelchairs without getting injuries. The key is to use the right cushion and to shift weight every 15 to 20 minutes.
Are these injuries only a problem in hospitals? No. They can happen at home, in aged care homes, or anywhere someone stays in one spot for too long.
Building a Safety Net for Skin Health
Protecting the skin is one of your most important jobs as a caregiver. It requires you to be observant and quick to act. By checking skin daily and moving people often, you create a safe environment. You help prevent pain and keep infections away.
Remember that skin health is a team effort. Talk to the nurses, the kitchen staff, and the person’s family. When everyone works together, you can make sure that pressure injuries do not become a problem. Your attention to detail makes a huge difference in the quality of life for those you support. Keep your eyes open for those small red spots: they are the first sign that someone needs your help.
