Is APTT 23.4 normal, high or low? What does APTT level 23.4 mean?

📅 Medical Review Date: March 4, 2026

Your APTT level of 23.4 is a Normal APTT level.

Normal APTT levels may indicate underlying health problems. The normal range is typically between 22 seconds and 35 seconds. If your levels are outside this range, it's important to speak with a healthcare provider. Consulting a doctor is recommended to determine the cause and appropriate next steps.

The normal APTT range for men is :22 - 35 seconds

Ideal values of APTT depending on age (male) :

Age	Ideal APTT value
<5 years	22.515
5-10 years	23.042
10-15 years	23.581
15-20 years	24.133
20-25 years	24.698
25-30 years	25.276
30-35 years	25.867
35-40 years	26.472
40-45 years	27.091
45-50 years	27.725
50-55 years	28.374
55-60 years	29.038
60-70 years	29.717
70-80 years	30.412
80-90 years	31.124
90-100 years	31.852
>100 years	32.597

*Ideal values are calculated based on our database of patient records

Get Advice via Email : Send us your blood test report, and our APTT experts will review it. You'll receive a detailed analysis and personalized treatment guidance via email within 12 hours. If you have additional blood test results besides APTT, please include those too—an accurate diagnosis often requires a full view of all abnormalities. Upload blood test report now

1,51,150

Total number of patients treated

A video message on the treatment of your normal APTT level

If you want your blood test report to be interpreted by APTT specialist, you can upload your report. Our APTT expert will provide you with the most accurate interpretation of your blood test results and treatment within 12 hours.Upload blood test report now

Some examples of conditions that increase or decrease APTT levels include:

• Liver disease
• Vitamin K abnormality
• Decreased or defective factor I (fibrinogen), II (prothrombin), V or X
• Hemophilia A and hemophilia B
• Willebrand disease

Receive world-class medical opinion about your normal APTT levels over email.Upload blood test report now

Normal range of APTT found among women :22-35 seconds

Ideal values of APTT depending on age (female) :

Age	Ideal APTT value
<5 years	22.53
5-10 years	23.073
10-15 years	23.629
15-20 years	24.199
20-25 years	24.782
25-30 years	25.379
30-35 years	25.991
35-40 years	26.617
40-45 years	27.259
45-50 years	27.916
50-55 years	28.589
55-60 years	29.278
60-70 years	29.984
70-80 years	30.707
80-90 years	31.447
90-100 years	32.205
>100 years	32.981

If you take a APTT blood test and the results are not in the normal range (22-35 seconds), your physician may recommend more tests to figure out the problem. You might also get this test if your physician thinks you have some other disease.

This page was viewed the most from these cities in the last 30 days:

• Indo-Parthian Kingdom
• Gobbur (B)
• Kurniwadi
• Les Brouzils
• Kharian, India
• Hemagudda
• Le Bouchon-sur-Saulx
• Jahanuma
• Huaying
• Le Valtin
• Karvirala
• La Latette
• Girolles, Loiret
• Later Qin
• Harra, Uttar Pradesh
• Lachassagne
• Kapasan
• Geography of Bhutan
• Haidrabad Dona
• Kanayannur
• La Unión, Copán
• Kōzu-shima
• Karunguzhi
• Kannamangalam (Temble)
• Kasangadu
• Jussy-Champagne
• La Gresle
• Gozaria
• Leonessa
• Italian protectorate over Albania
• Jowai
• La Bastidonne
• Gembrie
• Kadapakkam, Chennai
• Garčin
• Kharua Rajapur
• Garu-Tempane District
• Joursac
• Lamagdelaine
• Govindhampalayam
• Khedbrahma
• Gilat
• German, Bulgaria
• History of New Hampshire
• Le Triadou
• Ghanaur
• Karuma
• Karandighi (Vidhan Sabha constituency)
• Itami, Hyōgo
• Grand Manan Island
• Kalsia
• Jinnan District
• Kierieian, Rhode Island
• La Bastide-Solages
• Kingdom of Armenia (antiquity)
• La Selle-sur-le-Bied
• Gorlago
• Leonardsville, New York
• Gudo Visconti
• Le Plessis-Grohan
• Gloppen
• Geruge
• Kallapur
• La Valette-du-Var
• La Chaussée-d'Ivry
• Karlo Island, Diglipur
• Ghanegaon
• Gudem Kotha Veedhi
• Lesné
• Hérault
• Hauriet
• Hangenbieten
• Le Chêne
• Isle of Man
• Gundala, Khammam
• Khanpur Dhadda
• Høyanger
• Kailua, Hawaii County, Hawaii
• Huiron
• Kachhla
• Khed Shivapur
• Koumac
• Hejin
• Hare Island
• Geneva score
• Kallikulam
• Jettingen, Haut-Rhin
• Koto, Tokyo
• Kunniyur
• Kollappally
• Jurat ash-Sham'a
• Lémeré
• General Command of the Armed Forces of South Russia
• Le Buis
• Lapanga
• Ladiville
• Le Torpt
• Griselles, Loiret
• Lhuys
• Khokhra
• Kadadhe
• Keeranur, Kumbakonam
• Jagadanandapur
• La Bruguière
• Khinvsar
• Hongdo
• Ghumana
• Kadampara
• Kusmara
• Jamalpur, Bihar
• Inner Six
• Gozzano, Italy
• Le Villars
• Khejuri (Vidhan Sabha constituency)
• Kohkadi
• Kurseong (community development block)
• Kalale
• Kirchberg, Haut-Rhin
• Kusuma
• La Poterie-Mathieu
• Kolu Khedi, Huzur
• Kaytha
• Kalisz Voivodeship (1314–1793)
• La Genétouze
• Katakbhavi
• Geography of Saint Pierre and Miquelon
• La Chapelle-Heulin
• Izeste
• Les Pieux
• Laféline
• Lab quarters
• Law Islands
• La Coche
• Incudine
• Jiangyin
• Kitakyushu
• Katnalli
• Le Pin, Calvados
• Gwarighat
• Gopaipali
• Grindal Island
• Garchy
• Halloy, Pas-de-Calais
• Isola di Fondra
• Kalvøy, Stavanger
• Kodomari, Aomori
• Kurubarapalli
• La Neuveville-sous-Montfort
• Krishnagiri, Kurnool district
• Lallaing

How the APTT Test Is Done :

When your doctor orders a APTT test, it involves a straightforward blood draw to measure your APTT levels. A pathologist or lab technician will take a small sample of blood from a vein using a needle. Your APTT test results are usually available within a few hours.

Medical References

• WebMD – Activated Partial Thromboplastin Time (APTT) Test
• Cleveland Clinic – Partial Thromboplastin Time (PTT) Test
• NIH – Solutions to Establishing and Verifying Normal Reference Intervals and Assessing APTT Reagents