Blood testing is typically regarded as ordinary hospital care. So are X-rays and most diagnostic tests.
All other tests and procedures need separate consent forms.
That said, a patient can revoke consent even for one or all blood tests, if they choose to do so. If a lucid patient says No, and a nurse (or lab tech, or doctor) tries to insert a needle into a vein against patient wishes, it can be a tort. A medical person cannot touch a patient once the patient clearly states NO. Go to your Supervisor, if this occurs. A Super or the doctor might get the patient's cooperation. Of course, doctors don't like games, so the doctor could dismiss the patient from care unless the patient can express a really good reason to say no to a doctor's order.
blood test
Patients who experience continued bleeding or abnormal swelling of the puncture site, sudden dizziness, or chest pain in the days following an angiographic procedure should seek medical attention immediately
Patients must avoid sitting or standing and remain lying down for as long as six hours after the lumbar puncture. They should also drink plenty of fluid to help prevent lumbar puncture headache
Because life-threatening internal bleeding is a possible complication of an arterial puncture, an overnight stay in the hospital is sometimes recommended following an angiographic procedure, particularly with cerebral and coronary angiography
Patients can undergo the test in a doctor's office, laboratory, or outpatient hospital setting.
A vein that has become hard or thick due to the continuous puncture's of a needle from procedures or even drug use
tetanus
Patients who experience swelling of the puncture site or continued bleeding after phlebotomy should seek immediate medical treatment.
Patients who experience swelling of the puncture site or continued bleeding after phlebotomy should get medical help at once.
Prepare for lumbar puncture
Discomfort or bruising may occur at the puncture site after the blood is drawn or the person may feel dizzy or faint. Pressure to the puncture site until the bleeding stops reduces bruising. Warm packs on the puncture site relieve discomfort.
Puncture to the finger tips
There is a danger of puncturing the vessel with the guidewire during an angioplasty, although the risk is very small. Patients must be monitored for hematoma or hemorrhage at the puncture site