A suction apparatus is used to remove secretions, blood, or other fluids from a patient’s airway or surgical site to keep it clear.
IV set used to give fluids / medicine

A Cautery is an Electrosurgical Unit, It is used to cut tissues and coagulate (stop bleeding) at the same time.
Retractor is used to hold the tissue apart.

Hyphae that do not have septa (cross walls) are not divided into separate cells. Such hyphae have many nuclei in one continuous cytoplasm, so they are called coenocytic hyphae

Intradermal injection should be given at 30 degree.
Sometimes Subcutaneous injections (into the fatty layer) are given at 45 degree.

Lapartotomy is an open surgery.
Tonsillectomy is a throat surgery.
Septopasy is a nasal surgery.
Cholecystectomy is removal of gall bladder.

A Richardson retractor is a large and strong handheld surgical instrument used to hold back tissues and organs in abdominal and thoracic surgeries to give the surgeon better access.
For Eye, Brain and Ear surgery special fine retractors are used not Richardson.

An OT Technician helps the surgeon by handling surgical instruments during operations.
Cleaning OT is the duty of cleaning Staff.
Washing Scrubs is the duty of Laundry Staff.
Remove clothes is done by patient themselves.

A defibrillator gives an electric shock to the heart to restore normal cardiac rhythm during cardiac arrest.
Cardiac Monitor only observes heart activity.
ECG Machine records heart’s electrical activity.
Pulse Oximeter measures oxygen level and pulse only.

Hydrogen gas is not used in the operating room because it is highly flammable and explosive, which is very dangerous in a surgical environment.
Carbon Dioxide used in Labaroscopy.
Nitrous Oxide is an Anesthetic Gas.
Air commonly used for ventilation.

16 G is a large-bore cannula, used when rapid fluid or blood transfusion is needed.
There are six types of cannula, which detail is given below:
The color of 14 G cannula is Orange and used for Major Trauma / Rapid Blood Transfusion.
The color of 16 G cannula is Grey and used for Rapid Blood Transfusion.
The color of 18 G cannula is Green and used for Blood Transfusion and Surgery.
The color of 20 G cannula is Pink and used for Routine IV fluids and medicine.
The color of 22 G cannula is Blue and used for Paediatric patients.
The color of 24 G cannula is Yellow and used for very small veins.
The color of 26 G cannula is Purple and used for premature babies.