What to do with patient need give blood sample having dehydration n cant drink water because of fast?

1. Check the patient's vital signs. This includes their blood pressure, heart rate, and respiratory rate. If these are unstable, the patient may need to be given intravenous fluids.

2. Assess the patient's dehydration. This can be done by checking their skin turgor and by asking them about their thirst. If the patient is severely dehydrated, they may need to be given oral rehydration salts or intravenous fluids.

3. Explain the procedure to the patient. Make sure the patient understands why they need to give a blood sample and how the procedure will be done.

4. Collect the blood sample. This is usually done by inserting a needle into a vein in the patient's arm and withdrawing a small amount of blood.

5. Apply pressure to the puncture site. This will help to stop the bleeding.

6. Bandage the puncture site. This will help to protect the site from infection.

7. Label the blood sample. This is important so that the sample can be properly identified.

8. Send the blood sample to the lab. The lab will test the blood sample and provide the results to the patient's doctor.

Additional tips:

* If the patient is feeling lightheaded or dizzy, have them lie down.

* If the patient is vomiting, help them to clean up and provide them with a cool, wet cloth to place on their forehead.

* Offer the patient small sips of water to help them stay hydrated.

* Encourage the patient to eat small, frequent meals to help them regain their strength.