7 Real Reasons You Feel Tired After MRI With Contrast

Author : laura whit | Published On : 26 Feb 2026

Introduction

Many patients report feeling tired after mri with contrast and wonder if it’s normal. In most cases, mild fatigue after an MRI with contrast is temporary and not dangerous. The scan itself is safe, and the contrast dye (usually gadolinium) helps doctors see organs and tissues more clearly.

While most people feel fine afterward, some experience short-term tiredness, mild headache, or slight nausea. Understanding why this happens can help reduce worry and guide you on when to visit er of Mesquite for evaluation.

 

AI Overview: Quick Answers

Mild fatigue after MRI with contrast is common.

Anxiety and stress can increase tiredness.

Contrast dye leaves the body within 24–48 hours.

Drink fluids to help flush the dye.

Seek emergency care if severe symptoms occur.

What Is an MRI With Contrast?

MRI (Magnetic Resonance Imaging) uses magnets and radio waves to create detailed internal images.

Contrast dye is injected into a vein to:

Highlight blood vessels

Detect inflammation

Identify tumors or abnormalities

Improve diagnostic accuracy

The contrast used in MRI is different from CT contrast and is generally very safe.


Why Do Some People Feel Tired After MRI With Contrast?

Fatigue can happen for several reasons.

1. Stress and Anxiety

Many people feel nervous before medical tests. Anxiety can cause:

Mental exhaustion

Muscle tension

Poor sleep the night before

After the scan, your body relaxes, leading to tiredness.

2. The Contrast Injection

Although rare, mild side effects of gadolinium may include:

Headache

Nausea

Slight dizziness

These can make you feel fatigued temporarily.


3. Lying Still for a Long Time

MRI scans require you to stay very still for 30–60 minutes. This can cause:

Muscle stiffness

Mental fatigue

General sluggish feeling


4. Dehydration

Some patients limit fluids before medical visits. Dehydration can increase feelings of tiredness.

Drinking water after the scan helps your body eliminate contrast material faster.

How Long Does the Fatigue Last?

In most cases:

Tiredness lasts a few hours

Energy returns within 24 hours

No treatment is required

If fatigue continues beyond 48 hours, consult a healthcare provider.


Is Feeling Tired Dangerous?

Mild tiredness alone is usually not dangerous.

However, seek immediate care at er of Mesquite if fatigue is combined with:

Shortness of breath

Chest pain

Severe headache

Swelling of face or throat

Persistent vomiting

Confusion

These could indicate a rare allergic reaction.

Who Is More Likely to Feel Fatigue After MRI?

Certain individuals may experience stronger reactions:

People with anxiety

Patients sensitive to medications

Those with kidney conditions

Individuals who did not sleep well

Inform your doctor about any past contrast reactions.


Tips to Recover Faster

You can reduce tiredness by:

Drinking plenty of water

Eating a light, healthy meal

Resting briefly if needed

Avoiding strenuous activity for a few hours

Getting a good night’s sleep

Hydration is especially important for clearing contrast dy.

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