The NAD medical abbreviation most often means no acute distress, a quick summary on a physical exam that the patient looks comfortable and is not in obvious, urgent trouble. It usually appears in the general appearance line at the top of the exam.
In British usage and in several other countries, NAD is also read as no abnormality detected or nothing abnormal detected, a broader statement that a part of the exam was normal. A third meaning, NAD with a plus sign, belongs to biochemistry. This page explains what NAD does and does not say, with sample exam lines.
At a glance
Main meaning
No acute distressOther meanings
No abnormality detected (UK and elsewhere); NAD+ is a coenzyme in biochemistryWhere you see it
General appearance line of a physical examWritten as
NAD, nad, in NADPairs with
Opposite phrasing
In mild, moderate or severe distress
What the NAD medical abbreviation says about a patient
When a clinician writes NAD, they are describing their first look at the patient. No acute distress means the person is not struggling to breathe, not in severe pain, not panicked and not visibly very sick at that moment. It is an overall impression, made in seconds, before the detailed exam.
That first impression matters. A patient who is in distress may need faster action, while a patient in no acute distress can usually be assessed step by step. NAD helps the next reader picture how the person looked when the note was written.
NAD medical abbreviation on the physical exam
NAD almost always sits in the general section, often shortened to Gen or GA, at the top of the exam. A typical line puts several quick impressions together.
| Phrase | Plain meaning |
|---|---|
| Well appearing, NAD | Looks healthy and comfortable |
| A&O x3, NAD | Alert, oriented to person, place and time, comfortable |
| Uncomfortable but NAD | Some discomfort, not in urgent distress |
| In moderate distress | Clearly struggling, such as with pain or breathing |
| Ill appearing | Looks unwell overall |
Urgent care exam: "Gen: NAD, speaking full sentences. Lungs: CTAB." Here the person looks comfortable, can talk without stopping for breath, and the lungs are clear on both sides.
What NAD does not mean
No acute distress is not the same as nothing wrong. A person with a broken wrist, a kidney stone that has eased, or a serious long term illness can still be in NAD at the moment of the exam. The rest of the note, including the findings and the assessment, tells you what the clinician found.
Patients sometimes feel that NAD downplays what they told the clinician. It does not judge how much a symptom hurts or matters. It only records how the person looked at that moment, such as resting calmly, talking easily and breathing without effort.
The UK meaning: no abnormality detected
In the UK, Australia, India and some other places, NAD is often read as no abnormality detected or nothing abnormal detected. A note might say "Abdo: NAD" to mean the abdominal exam was normal, or a urine dipstick report might say NAD to mean no abnormal result. In US charts, normal findings are more often written with WNL, within normal limits.
In biochemistry and on supplement labels, NAD with a plus sign stands for nicotinamide adenine dinucleotide, a molecule cells use to make energy. That meaning is unrelated to the exam.
Charting NAD as a nursing or scribe student
NAD is quick to write, which is why it shows up in almost every exam template. Students should make sure it matches the rest of the note: a patient in severe pain with a high heart rate should not be charted as NAD. Adding a short detail, such as "resting comfortably" or "speaking in full sentences," makes the finding more useful. The nursing abbreviations guide covers other common exam shorthand.
NAD is explained here as a general exam term. If your own note raises questions, the clinician who examined you can say what they saw.
Frequently asked questions
What does NAD mean on a physical exam?
NAD usually means no acute distress. It means the patient looked comfortable and was not in obvious, urgent trouble when examined.
Does NAD mean nothing is wrong?
No. It describes only how the person looked at that moment. Someone can have a real injury or illness and still be in no acute distress during the exam.
What does NAD mean in the UK?
In the UK and several other countries, NAD often means no abnormality detected or nothing abnormal detected. It is used to say that part of an exam or test was normal.
What does in NAD mean?
In NAD is another way of writing in no acute distress. You will see it in lines such as patient resting in bed in NAD.