The nurse is planning a program on wound healing and includes informat

The nurse is planning a program on wound healing and includes information that smoking influ-ences healing by:

1. Suppressing protein synthesis
2. Creating increased tissue fragility
3. Depressing bone marrow function
4. Reducing functional hemoglobin in the blood

ANSWER

ANS: 4
Smoking reduces the amount of functional hemoglobin in the blood, thus decreasing tissue oxy-genation. Antiinflammatory drugs suppress protein synthesis. Radiation creates tissue fragility. Chemotherapeutic drugs can depress bone marrow function.