Venipuncture can take place in a general medical practitioner’s office and is often carried out by a trained phlebotomist or nurse….Three popular methods of blood collection are:
Q. What structures are used by bacteriophages to attach?
To enter a host cell, bacteriophages bind to specific receptors on the surface of bacteria, including lipopolysaccharides, teichoic acids, proteins, or even flagella.
Table of Contents
- Q. What structures are used by bacteriophages to attach?
- Q. How do bacteriophages find and attach to host cells?
- Q. How do the structures of bacteriophages help them infect host cells?
- Q. Can any virus infect any cell?
- Q. How do I make my veins better for blood draw?
- Q. What veins should I avoid for cannulation?
- Q. Which vein is used for IV?
Q. How do bacteriophages find and attach to host cells?
Bacteriophages. Most bacteriophages are dsDNA viruses, which use host enzymes for DNA replication and RNA transcription. Phage particles must bind to specific surface receptors and actively insert the genome into the host cell.
Q. How do the structures of bacteriophages help them infect host cells?
How do the structures of bacteriophages help them infect host cells? Tail and spikes help attach the virus to the host cell, the tail releases enzymes to break down the bacterial cell wall. The tail core breaks the cell wall and injects the phage’s DNA, the phage injects the genes into the host cell’s cytoplasm.
Q. Can any virus infect any cell?
A virus is a packet of protein encapsulated DNA or RNA that MUST infect a cell to make more viruses. Tropism: A cell must have a specific protein(s) in order for a virus to get inside the cell. Not all Viruses are able to infect the same cells. Not all cells can be infected within an organism.
- Arterial Sampling.
- Venipuncture Sampling.
- Fingerstick Sampling.
Q. How do I make my veins better for blood draw?
Tips and Tricks for Accessing Problem Veins
- Get warm. When the body is warm, blood flow increases, dilating the veins and making them easier to find and stick.
- Use gravity. Increase blood flow to your arm and hand by letting gravity do the work.
- Hydrate. When the body is properly hydrated, veins become more dilated.
- Relax.
Q. What veins should I avoid for cannulation?
Select a suitable vein before selecting the device. The veins of choice are the cephalic or basilic. Avoid using the antecubital veins as this will restrict the patient’s movement and increase the risk of complications such as phlebitis and infiltration (Dougherty & Watson, 2011; RCN, 2010).
Q. Which vein is used for IV?
Median antecubital, cephalic and basilic veins are easy to hit and tend to last quite well if splinted properly. These veins are the preferred sites for insertion of percutaneous central venous catheters.
