Palpitations

 

Heart Palpitations Evaluation in Princeton & Lawrenceville, NJ

Heart palpitations are the sensation that your heart is racing, pounding, fluttering, or skipping beats. They can last seconds, minutes, or longer. Sometimes they’re harmless and related to stress, caffeine, dehydration, or exercise. Other times, they may reflect an underlying rhythm issue that needs evaluation.

The most important first step is identifying whether your palpitations are associated with danger signs like chest pain, fainting, shortness of breath at rest, or a family history of serious heart rhythm problems.

This page explains common causes, red flags, how palpitations are evaluated, and how return to exercise is guided—especially for patients in Princeton, Lawrenceville, West Windsor, Plainsboro, Hopewell, Pennington, and Robbinsville.

Quick Takeaways

• Palpitations are common and often benign—but not always.
• Racing heart with chest pain, fainting, or severe shortness of breath requires urgent care.
• Triggers can include caffeine, stress, dehydration, illness, or sleep deprivation.
• Evaluation focuses on pattern, duration, associated symptoms, and risk factors.
• Return to sport depends on ruling out dangerous rhythm conditions.

At Princeton Sports and Family Medicine, P.C., PSFM Wellness, and Fuse Sports Performance, we don’t believe in guessing your way through training. We believe in building resilient, durable athletes who arrive at race season strong, confident, and healthy. In addition to problem-focused visits, we offer sports performance evaluations to stop problems before they start. Plan your visit today.”

1. C) WHO THIS AFFECTS + WHY IT HAPPENS

Who This Affects

• Adults of all ages
• Athletes during intense training blocks
• Individuals under stress or sleep deprivation
• People with high caffeine or stimulant intake
• Individuals with thyroid issues, anemia, or dehydration
• Those with a personal or family history of heart rhythm conditions

Why Palpitations Happen

Palpitations may come from:

1. Benign extra beats (common)

• Premature beats that feel like “skips” or “thumps”

2. Fast rhythms

• Episodes of rapid heart rate that start and stop suddenly

3. Stress or anxiety

• Adrenaline-driven heart rate increases

4. Stimulants

• Caffeine, nicotine, energy products, some medications

5. Illness or dehydration

• Fever, viral infections, fluid imbalance

6. Medical conditions

• Thyroid abnormalities
• Anemia
• Electrolyte imbalance
• Structural heart disease (needs evaluation)

Risk Factors

• Family history of sudden cardiac death
• Prior fainting with exercise
• Known heart disease
• High stimulant intake
• Significant electrolyte imbalance
• Heavy endurance training without recovery
• Dehydration

SYMPTOMS + WHAT’S NORMAL VS NOT

Typical Palpitation Descriptions

• “Skipped beat”
• “Fluttering”
• “Racing heart”
• “Pounding in my chest or throat”
• Brief pause followed by a strong beat

Short episodes without other symptoms are often benign—but pattern matters.

Seek Urgent Care Now If:

• Palpitations with fainting or near-fainting
• Chest pain or pressure
• Severe shortness of breath at rest
• Confusion or weakness
• Palpitations triggered by exercise with dizziness
• Family history of sudden cardiac death plus symptoms
• Sustained rapid heart rate that doesn’t slow down

DIAGNOSIS

What We Assess

• Onset pattern (sudden vs gradual)
• Duration and frequency
• Triggers (exercise, caffeine, stress, illness)
• Associated symptoms (dizziness, chest pain, shortness of breath)
• Family and personal cardiac history
• Medication and supplement review

Physical Exam

• Heart rate and rhythm
• Blood pressure
• Signs of dehydration or thyroid concerns
• General cardiovascular screening

When Testing May Be Considered

Depending on presentation:

• ECG (electrocardiogram)
• Heart rhythm monitoring
• Blood tests (thyroid, anemia, electrolytes)
• Additional cardiac testing in selected cases

Testing decisions are individualized based on risk profile and symptoms.

What to Expect at Your Visit

• Risk screening and symptom review
• Determination of benign vs concerning pattern
• Discussion of triggers and lifestyle drivers
• Clear plan for monitoring or testing if needed
• Safe return-to-activity guidance

TREATMENT OPTIONS

Treatment depends on cause.

Self-Care Basics (When Benign Pattern Identified)

Helpful Steps

• Hydration
• Reduce caffeine and stimulant intake
• Improve sleep consistency
• Manage stress
• Avoid sudden training spikes

Avoid

• Ignoring episodes with fainting or chest pain
• Using energy products while symptomatic
• Abrupt medication changes without guidance

Rehab / Load Management for Athletes

If palpitations occur during heavy training:

• Scale intensity temporarily
• Improve recovery scheduling
• Emphasize hydration and electrolyte balance
• Gradually reintroduce intensity once cleared

Medications

Medication decisions depend on the rhythm identified and overall risk. Not all palpitations require medication. Some rhythm conditions require specialist input.

Never start or stop cardiac medications without clinician supervision.

Procedures / Referral

In some cases, referral to cardiology may be considered for advanced rhythm evaluation depending on findings.

RETURN TO SPORT / ACTIVITY GUIDANCE

Return depends on whether dangerous causes are excluded.

Early Phase

• Light aerobic activity if symptom-free
• Avoid maximal intensity while evaluation ongoing

Mid Phase

• Gradual increase in training duration
• Monitor heart rate response
• Avoid stimulant-heavy workouts

Late Phase

• Full return once cleared
• Maintain hydration and recovery habits

Common Mistakes

• Training through dizziness
• Ignoring family cardiac history
• Using high caffeine intake during episodes
• Jumping back into maximal intervals
• Assuming anxiety without medical evaluation

PREVENTION

• Maintain consistent hydration
• Limit stimulant overuse
• Prioritize sleep
• Progress training loads gradually
• Monitor electrolyte intake during endurance training
• Address thyroid or anemia issues when present
• Seek evaluation for recurring episodes in Princeton-area communities

At PSFM Wellness, Fuse Sports Performance and Princeton Sports and Family Medicine, P.C., our professionals specialize in sports medicine services, including sport specific evaluations and training to assess your risk for injury and assist in your performance goals.

FAQs

When should I worry about palpitations?

If they occur with fainting, chest pain, severe shortness of breath, or during exercise with dizziness—seek urgent evaluation.

Do I need an ECG?

If your symptoms are new, persistent, or concerning, an ECG may be considered.

Can caffeine cause palpitations?

Yes. Caffeine and stimulants are common triggers.

Are skipped beats dangerous?

Occasional skipped beats can be common and benign—but frequency and associated symptoms matter.

Should I stop exercising?

Not always. Mild, benign palpitations may not require stopping, but concerning symptoms during exercise require evaluation.

Can dehydration cause palpitations?

Yes. Fluid imbalance can increase heart irritability.

What about anxiety?

Anxiety can trigger palpitations, but medical causes should be ruled out first.

I live in Princeton—can I keep training for my race?

If episodes are mild and evaluation is reassuring, you may continue with modifications. If palpitations occur with dizziness or chest pain, stop and seek care.

Can thyroid problems cause palpitations?

Yes. Thyroid imbalance can increase heart rate and rhythm symptoms.

What if episodes are getting more frequent?

Worsening frequency deserves evaluation even if previous episodes were mild.

RELATED PAGES

• Chest Pain — https://www.princetonmedicine.com/contents/chest-pain
• High Blood Pressure — https://www.princetonmedicine.com/contents/high-blood-pressure
• High Cholesterol — https://www.princetonmedicine.com/contents/high-cholesterol
• Cardiometabolic Risk — https://www.princetonmedicine.com/contents/cardiometabolic-risk
• Shortness of Breath — https://www.princetonmedicine.com/contents/shortness-of-breath
• Dizziness — https://www.princetonmedicine.com/contents/dizziness
• Fatigue — https://www.princetonmedicine.com/contents/fatigue
• Exercise Readiness — https://www.princetonmedicine.com/contents/exercise-readiness

CONTACT / BOOKING

Contact Princeton Sports and Family Medicine, P.C., at our Lawrenceville office. Book an appointment online or call us directly to schedule your visit today.

DISCLAIMER

Educational content only; not medical advice. If you experience palpitations with fainting, chest pain, severe shortness of breath, confusion, or persistent rapid heart rate—seek urgent evaluation immediately.