A post-lung surgery client is placed on a chest tube drainage system. When explaining to the family how the system works, the nurse states that the water-seal bottle of a three-bottle chest drainage system serves which of the following purposes?
Answer(s): D
(A) There is a separate collection bottle for drainage as part of a chest drainage system. (B) In a three-bottle chest drainage system, one bottle serves only as a pressure regulator. (C) Mediastinal chest tubes prevent accumulation of blood around the heart immediately following heart surgery. (D) The purpose of the water-seal bottle in any chest drainage setup is to allow air out of the chest, but not back in. This negative pressure promotes lung expansion.
Which of the following serum laboratory values would the nurse monitor during gentamicin therapy?
Answer(s): A
(A) A common side effect of gentamicin is nephrotoxicity. The serum laboratory test that best reflects kidney function is serum creatinine. (B) Serum sodium has no relationship to gentamicin. (C) Serum calcium has no relationship to gentamicin. (D) Serum potassium has no relationship to gentamicin. If a client has impaired renal function secondary to gentamicin administration, he or she may also have hyperkalemia as a secondary disorder.
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