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swift blood tests
  • Blood Test

Tired All the Time Blood Test

£160.00

5/5 from 221+ verified Google reviews

28 Biomarkers

Comprehensive assessment for chronic fatigue causes.

Booking details

Overview

The Tired All the Time Panel is a comprehensive blood test specifically designed to investigate the underlying causes of persistent fatigue, low energy, and exhaustion that doesn’t improve with rest. This targeted screening evaluates the most common medical causes of chronic tiredness including thyroid dysfunction, iron deficiency anemia, vitamin deficiencies, diabetes, liver problems, kidney issues, and chronic inflammation—all conditions that frequently manifest as persistent fatigue. 

Key Test Components

Thyroid Function Tests
  • TSH
  • Free T4
  • Free T3
  • Ferritin
  • Serum Iron
  • TIBC
  • Transferrin Saturation
  • Critical vitamin for energy production, red blood cell formation, nerve function, and DNA synthesis.
  • Critical for immune function, bone health, muscle function, mood regulation, and energy levels.
  • HbA1c
  • Glucose
  • Insulin
  • C-peptide
  • Ca
  • ALP
  • Vitamin D
  • Phosphate
  • Cystatin C
  • eGFR
  • Urea
  • Sodium
  • Potassium
  • Chloride
  • Magnesium
  • Cisplatin
  • C-reactive protein measures systemic inflammation in the body.
  • Free T4
  • T3
  • TSH

Sample Requirements

Sample Type:

Venous blood sample drawn

Turnaround Time:

1-2 working days for complete panel

Why You Might Need This Test

Symptoms:

  • Persistent tiredness and exhaustion that doesn't improve with adequate sleep or rest
  • Constant low energy affecting daily activities, work performance, and quality of life

Health Screenings:

  • Routine investigation of unexplained persistent fatigue lasting several weeks or months
  • Health check when tiredness is affecting work, relationships, or daily functioning

Ongoing Monitoring:

  • Following up on previous abnormal results or diagnosed deficiencies
  • Monitoring treatment effectiveness for anemia, thyroid disorders, or vitamin deficiencies

Can’t Find Your Test?

If you can’t find the test you’re looking for, simply give us a call and our support team will guide you to the right option. We’re here to ensure you get the correct test quickly and confidently.

For Bookings Call at:
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Tired All The Time Blood Test — What This Fatigue Panel Checks

Feeling worn out most days, even after a full night’s sleep? A tired all the time blood test brings several of the checks most often used when energy is low into one appointment, so you don’t have to book single tests one by one.

What’s included

This fatigue blood test is built around the areas most commonly looked at when someone feels tired for weeks at a time:

  • Thyroid function
  • Iron stores
  • Key vitamins
  • Full blood count
  • Kidney function
  • Liver function
  • HbA1c (blood sugar)

Looking at these together gives you and your GP a clearer starting point than guessing which single test to book first.

Check Collection Options & Book

Who May Consider This Test

  • You’ve had low energy most days for several weeks
  • You struggle with concentration or “brain fog”
  • You’ve improved sleep and routine but still feel drained
  • You want a broad check before speaking to your GP

What This Test Can and Cannot Tell You

It can

  • Show whether common markers linked to tiredness sit inside or outside the laboratory reference range
  • Give you and your GP a clearer place to start
  • Help you decide whether a more focused test is worth doing next

It cannot

  • Diagnose the cause of your tiredness on its own
  • Pick up causes that don’t show in blood, such as poor sleep, stress, low mood or medicine side effects
  • Replace a GP assessment, especially if tiredness is new, severe or comes with other symptoms

Tired All The Time vs Iron or Thyroid Testing — Which Do You Need?

If you already know which area you want checked, a focused test may suit you better. If you don’t know where to start, the broader panel covers more ground in one sample.

This test

Tired All The Time Blood Test

Best when you feel tired all the time and aren’t sure what to check first. Several common areas, one appointment.

Book This Test
Iron focus

Advanced Iron Blood Test

Best when iron is the specific question — for example, you’ve had low iron before and want a closer look.

View the advanced iron blood test
Thyroid focus

Thyroid Function Test

Best when your thyroid is the main thing you or your GP want checked.

View the thyroid function test

How It Works: Choose Clinic, Home Visit or Kit

  1. Choose how to give your samplePick your collection option in the booking panel above. Depending on the test, this can include a Swift clinic appointment, a home visit in Essex or a kit.
  2. Give your sampleAttend your appointment or complete your collection as instructed. Not sure about preparation? Call the team before you go.
  3. Get your resultsReview your results and share them with your GP, who can read them alongside your symptoms and history.

Want to know where you can have your blood taken? Find your nearest blood test clinic.

Preparation and Results

If you’re unsure how to prepare — for example, whether to eat beforehand or what time of day to book — call the Swift team on 01277 652067 before your appointment so your sample can be processed without delay.

When your results come back, a result outside the reference range isn’t a diagnosis on its own. Your GP can look at it alongside how you feel and decide what, if anything, needs doing next.

Tired All The Time Blood Test FAQs

What does the tired all the time blood test include?

It brings together checks commonly used when someone feels tired all the time, including thyroid function, iron stores, key vitamins, a full blood count, kidney and liver function and HbA1c (a longer-term blood sugar marker).

How much does the test cost?

The current price is shown in the booking panel at the top of this page. Your total, including the collection option you choose, is shown before you pay.

Can this test diagnose why I’m tired?

No. It can show whether common blood markers linked to tiredness are within range, but it can’t diagnose a cause on its own. Many causes of tiredness, such as sleep problems, stress or low mood, don’t show up in a blood test, so discuss your results with your GP.

Should I test my thyroid or iron separately instead?

If your GP or a previous result has already pointed to one area, a focused test such as an advanced iron or thyroid function test may suit you better. If you don’t know where to start, the tired all the time panel covers several areas in one sample.

Where can I have my blood taken?

Choose your collection option in the booking panel above. Depending on the test, this can include a Swift clinic appointment, a home visit in Essex or a kit. Use the clinic finder to see the location nearest to you.

What if one of my results is out of range?

An out-of-range result isn’t a diagnosis on its own. Share your results with your GP or clinician, who can interpret them alongside your symptoms and decide whether anything else is needed.

When should I see a doctor instead of booking a test?

If your tiredness is sudden or severe, or comes with symptoms such as unexplained weight loss, breathlessness, chest pain or heavy bleeding, speak to your GP or call NHS 111 rather than waiting for a private blood test.

Related Tests

Advanced Iron Blood Test Thyroid Function Test Vitamin D Blood Test Full Blood Count Test

Ready to Book Your Tired All The Time Blood Test?

Choose your collection option and book online in a few minutes.

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Book online Clinic, home visit (Essex) or kit where available Questions? Call 01277 652067
Swift Blood Tests nurse visiting a client at home
5.0 ★★★★★ 221 Google reviews

Great service. I’m not the best with needles, however, Jo made me feel comfortable and at ease which made the whole process much more tolerable. 5 stars from me.

Chris C. Google review · ★★★★★
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