Plasma sodium concentrations above 145 meq/l represent , a condition that rarely occurs due to equal increases in water.

The answer is hypernatremia. Common early symptoms attributed to this condition include a strong feeling of thirst, weakness, nausea, and loss of appetite. Normal serum sodium levels should range between 135 – 145 mmol/L. Hyperaldosteronism (increased production of aldosterone) may be the underlying cause of the condition.

answer: - b cells

explanation: -

there are many types of white blood cells present in our body. one such class of white blood cells are the lymphocytes. the b cells belong to the lymphocyte class of wbcs. the b cells perform their action against the pathogen by producing specialised proteins called as antibodies. these antibodies are produced as and when the b cells encounter pathogens in response to the antigens present on the surface of the pathogen. these antibodies bind to the antigens present on the pathogen and then, target them for destruction by other cells of the immune system.

so, the b cells mediate their action by identifying the antigens present on the surface of the pathogens and then producing antibodies in return to mediate its effect.