Antihistamines act through which mechanism?
a. Liquefying pulmonary secretions
b. Increasing secretions, reducing viscosity, and aiding in expectoration of sputum
c. Suppressing coughing
d. Competitively antagonizing histamine1 receptor sites
e. Constricting blood vessels in the respiratory tract
d. Competitively antagonizing histamine1 receptor sites
You might also like to view...
A nurse is checking the recommended dietary allowances of vitamins and minerals necessary for maintenance of good nutrition in an average healthy adult under normal living conditions. What is the authoritative organization(s) for this information in the United States?
a. The National Academy of Science and the National Research Council of the Food and Nutrition Board b. The Food and Drug Administration and the National Research Council of the Food and Nutrition Board c. The National Research Council of the Food and Nutrition Board d. The Drug Enforcement Agency and the National Research Council of the Food and Nutrition Board
Communicable diseases are caused by microorganisms called ________.
A. pathogens B. antigens C. antibodies D. leukocytes
________ are the primary care specialists in the medical care of infants, children, and adolescents.
A. General practitioners B. Obstetricians C. Pediatricians D. Dermatologists
Olfaction is the process of smelling
Indicate whether the statement is true or false