For anaesthesia given at high altitude, incorrect statement is:
|A||Potency of inhalational agents is high|
|B||Vaporizer output will be high|
|C||Blood loss is more|
|D||Rotameter under reads the actual flow rale|
Potency of inhalational agents is high
a. At high altitude the density of gases decreases so rotameter reads much below the actual value of delivered gas and due to this low density of gas, inhalational agent is delivered in high concentration.
b. Blood loss is more due to increase venous pressure at high altitudes.
c. Potency of an inhalational agent is proportional to its partial pressure. At high altitudes where barometric pressure is less the potency also decreases.