Entry into the bone marrow will result in the uptake of marrow cells. It is far safer to obtain blood samples through standard methods
Venous access introduces a needle into a vein, usually for the purpose of withdrawing blood or administering medication.
Blood samples are typically taken from the antecubital fossa, which is the area inside the elbow known for easy venous access. It is a common site for venipuncture due to the accessibility of veins in this region.
Venous access is necessary for fluid administration, medication administration, and obtaining blood for chemical analysis.
For simple procedures such as peripheral venous access, applying simple pressure (to stop bleeding) and a bandage may be sufficient
Intermittent venous access devices are used when a patient requires periodic or infrequent access to their veins for medication administration or blood sampling. They are temporary and can be removed once they are no longer needed, reducing the risk of infection or complications associated with long-term central venous access devices.
There are no major precautions for access during emergency procedures.
current legislation obtaining venous blood samples
VAD means venous access device.
For access into a peripheral vein, care must be taken not to puncture both sides of the vein.
For peripheral vein access in the arm, a tourniquet is applied a few inches over the puncture site.
cerebral oxygen saturation are weighted venous samples (70% venous, 30% arterial) Pulse oximeter values are based on arterial oxygen saturations.
describ the position of venous blood vessels in relation to arteries, nerves and other structures