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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