Medical abbreviations families should know — reading the chart

This article is for informational purposes only and does not constitute medical, legal, or financial advice. Always consult with qualified professionals regarding your specific situation.

Medical Abbreviations Families Should Know — Reading the Chart

Medical charts are filled with abbreviations. A simple hospital stay might generate documentation that includes BP, HR, NPO, IV, PT, and a diagnosis like CHF or COPD. If you're trying to understand what the doctor said or what's written in the medical record, seeing these abbreviations without explanation is frustrating. You might be too embarrassed to ask what they mean, or you might not realize you should have asked and only feel confused later.

This guide covers the abbreviations you're most likely to encounter in medical conversations about aging. These show up in doctor's notes, hospital discharge papers, and in conversations with nurses. You'll find common orders and instructions, assessment terms that describe how your parent is functioning, diagnoses that explain medical conditions, and abbreviations related to treatment settings. Once you know what these mean, medical documents become more readable and conversations with doctors become less intimidating. You're not supposed to know this language; doctors just assume you do, which isn't fair to you.

Common Orders and Instructions You'll See in Medical Records

BP is blood pressure. It's written as two numbers: systolic (the pressure when the heart beats) over diastolic (the pressure between beats). A reading of 120/80 is considered normal, though targets vary for older adults. BP is one of the first things measured at any medical visit. Understanding whether your parent's BP is controlled helps you know if their medications are working and whether lifestyle changes are needed.

HR is heart rate—how many times the heart beats per minute. A normal resting heart rate is between 60 and 100 beats per minute. In older adults, a heart rate that's persistently over 100 (called tachycardia) or persistently under 60 (bradycardia) might be worth investigating. Knowing your parent's resting heart rate can help you spot changes that need medical attention.

RX is the abbreviation for prescription or medication. When you see "RX" followed by a medication name, it means that medication has been prescribed. Patient education materials might show common medications and their RX abbreviations to help you understand prescriptions.

IV means intravenous—medication or fluids delivered directly into a vein. IV medications work faster than oral medications and are often used in hospitals when someone can't take medication by mouth or needs immediate effect. IV lines are typically placed in the arm or hand. Understanding that your parent is receiving IV medications explains why they're connected to tubes and equipment.

NPO means "nil per os" or nothing by mouth. If your parent is NPO before a procedure, it means they shouldn't eat or drink anything, usually because they're preparing for surgery or a procedure requiring anesthesia. The specific timeframe (usually 6-8 hours before the procedure) will be specified. Understanding NPO restrictions helps you support your parent through pre-procedure fasting.

PRN means "as needed." If a medication is ordered PRN, your parent takes it only when needed for symptoms rather than on a regular schedule. Pain medication is often prescribed PRN. Your parent should understand when to use PRN medications and what signs indicate they're needed.

Terms Describing Your Parent's Function and Mental State

ADL stands for Activities of Daily Living. These are the basic self-care tasks: bathing, dressing, toileting, eating, and transferring (moving from bed to chair). How well your parent can perform ADLs helps determine what level of care they need. If your parent needs help with most ADLs, they likely need assisted living or skilled nursing. If they can manage ADLs independently, they might only need support with instrumental activities (cooking, cleaning, medication management).

IADL is Instrumental Activities of Daily Living,more complex tasks like cooking, shopping, managing medication and finances, and using transportation. Someone might be able to bathe and dress themselves (ADLs) but struggle with managing medication or paying bills (IADLs). Understanding where your parent's difficulties are helps you figure out what kind of support they need.

MMSE stands for Mini Mental State Examination,a brief test of cognitive function. The doctor asks questions to assess memory, orientation to time and place, and ability to follow instructions. The score (out of 30) gives a picture of cognitive status. Scores below 24 suggest some cognitive impairment. This test is useful for determining whether your parent is experiencing normal aging or significant memory loss that warrants further investigation.

LOC means level of consciousness. It describes whether your parent is alert, drowsy, or unresponsive. Hospital notes might use specific terms: alert and oriented (A&O), or might note when someone is "alert but confused" or "drowsy but arousable." Understanding your parent's consciousness level helps you know how much they're able to participate in their own care and whether their mental status has changed.

Diagnoses That Explain Medical Conditions

CHF is congestive heart failure,the heart isn't pumping blood effectively, causing fluid to back up into the lungs and other tissues. People with CHF often experience shortness of breath, swelling in the legs, and fatigue. It's a chronic condition requiring ongoing medication and monitoring, not a one-time illness that resolves.

COPD stands for chronic obstructive pulmonary disease,damage to the lungs (usually from smoking) that makes breathing difficult. People with COPD experience shortness of breath, particularly with exertion, and often have a chronic cough. Like CHF, it's a long-term condition managed with medications and lifestyle adjustments.

CVA means cerebrovascular accident, commonly known as a stroke. A CVA occurs when blood flow to the brain is blocked, damaging brain cells. Depending on the location and severity, a stroke might cause weakness, speech problems, vision changes, or cognitive effects. The effects of a stroke depend on which part of the brain was affected and how extensive the damage is.

TIA stands for transient ischemic attack,sometimes called a "mini-stroke." Like a stroke, a TIA temporarily blocks blood flow to the brain, but the blockage clears and brain function returns to normal. TIAs are important because they signal increased stroke risk, and your parent needs follow-up evaluation and treatment to prevent a full stroke.

UTI is a urinary tract infection,infection in the bladder, urethra, or kidneys. In older adults, UTIs can present atypically, causing confusion or behavioral changes rather than the burning on urination that younger people experience. A urine culture confirms the diagnosis, and antibiotics treat it.

CAD means coronary artery disease,narrowing of the arteries that supply blood to the heart. When blood flow is restricted, your parent might experience chest pain (angina). CAD increases the risk of heart attack and often requires medication and lifestyle changes.

PT is physical therapy,working with a therapist to improve strength, balance, and mobility through exercise. After surgery or during recovery from illness, PT helps your parent regain function. PT might be short-term (rehabilitation following surgery) or longer-term (managing chronic conditions like arthritis).

OT is occupational therapy,working with a therapist to improve ability to perform daily activities. OT might focus on adapting the home environment, learning new ways to do tasks, or regaining fine motor skills. An occupational therapist helps your parent be as independent as possible in self-care and household tasks.

ICU is the intensive care unit,the hospital department for the sickest patients requiring constant monitoring and intensive intervention. If your parent is in the ICU, they have serious acute illness or injury requiring close medical supervision.

ER is the emergency room,where people go for acute, urgent problems like chest pain, severe injuries, or sudden onset symptoms. The ER provides stabilization and initial treatment, and your parent might be admitted to the hospital from the ER or discharged home after treatment.

OR is the operating room where surgery happens. If your parent needs surgery, they'll be taken to the OR where the surgical team performs the procedure under anesthesia.

These abbreviations and terms appear in medical conversations and written documentation. Asking your parent's doctor or nurse to explain what you're seeing on paper or hearing in conversation is completely appropriate. Good medical providers expect questions and are accustomed to explaining abbreviations. If you feel rushed or dismissed when asking for clarification, that's useful information about whether you feel heard and respected in that medical relationship.


How To Help Your Elders is an informational resource for families working through aging and elder care. We are not medical professionals, attorneys, or financial advisors. The information provided here is for educational purposes and should not replace professional consultation. Every family's situation is unique, and rules, costs, and availability vary by location and circumstance.

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