Blood sampling and urine collection
April 18,2023 Update
About the Central Blood Collection Room
We take blood samples and accept urine samples as well as stool and sputum required for medical examinations.
- Blood collection desk hours: 8:15 to 17:00
- Blood collection times: 8:30 to 17:00
Blood is usually collected from superficial veins on the patient's arm. Try to wear clothes that easily provide access to above the elbow. Blood draws takes only a few minutes, but the patients usually have to wait for the test results for more than one hour. Please come to the central blood collection room at least one hour before your appointment for outpatient consultation.
How to access the Central Blood Collection Room for Blood and Urine Sampling
- Please finish check-in at Returning Visit Reception Machine. If you receive a hospital registration slip as shown below, you will have to take blood and urine tests before the outpatient visit. Please register at the Blood collection / Urine collection Reception machine in the Central Blood Collection Room with your examination ticket. You can receive A blood collection room check-in Number at the reception machine.
- Please wait until your check-in number is called in the seats in front of the room. You can browse the bullet board for the waiting time. If you have only a urine test, you can receive a urine cup at the reception counter in the blood collection room.
- We will call your check-in number and let you know your sampling seat number. We will ask for your name, receipt number, and birthday to verify the patient's identity before blood sampling.
- Please bring your outpatient basic schedule strip to the hospital staff in charge of blood collection.
Hemostasis after blood collection.
Please try compression hemostasis for 5 minutes or more after the blood sampling is complete.
*Please let us know if you cannot properly apply pressure to the puncture site or if you feel difficulty in hemostasis because of anticoagulants.
Regarding urine collection
- Collect more than 50mL of urine in the cup.
- Please let the staff at the laboratory know if you cannot urinate adequately or are menstruating.
For your safe blood test
If any of the following applies to you, please report it to the hospital staff in charge of blood collection.
- - Do you feel sick during blood collection?
- - Are you allergic to any disinfectant (alcohol) or gloves (such as latex)?
- - Are you undergoing hemodialysis?
- - Are you taking anticoagulants?
- - Have you had your breast surgically removed?
- - Do you have any requests or uncertainty about the blood collection?
- - Do you feel a sharp pain and numbness in the fingers during and after the blood collection?
- - For inquiries or any uncertainty, please contact the hospital staff.
Regarding hemostasis
As shown in the right figure, it is important to apply pressure to the puncture site properly for more than five minutes. Please apply the tourniquet astriction firmly.
- Please let us know if you cannot properly apply pressure to the puncture site or if you feel difficulty in hemostasis because of anticoagulants.
- Do not lift a heavy object or exert force on the arm where the blood was drawn.
Important complications associated with blood collection
“Blood collection” is a safe procedure, in which complications are very rare and mostly mild. However, in very rare cases, the following health problems have been reported.
- Hemorrhaging
Subcutaneous bleeding which causes livid discoloration along with pain is possible during and after blood collection, but it should be absorbed and disappear in about one to two weeks. (It depends on each person) - Vasovagal reaction
This tends to occur when the patient is nervous and anxious, even before blood collection. The nerves become excited and the blood pressure drops sharply, leading to dizziness, discomfort, fainting, or other problems. It is reported to occur with a frequency of 0.01 to 1%, although the reports vary to some degree. If such complications occur, we will handle them with the best treatments. (The medical treatment of such complications will be provided as a normal medical service covered by health insurance.)
You can lie down on the bed and take a blood test if you have ever felt sick during blood sampling. - Nerve damage
Pain or numbness in fingers persists even long after blood collection. This is said to occur approximately once in 10,000 to 100,000 punctures. It is not possible to completely prevent nerve damage, because the state of the nerve fibers near the outer layer of the skin varies greatly between individuals. Nonetheless, ruptures of thick nerve fibers are rare and mostly mild and temporary.
Please tell us if you feel a sharp pain and numbness in the fingers during the blood collection. Please contact your attending doctor if you have persistent pain.
