A nurse is preparing to administer olanzapine 10 mg PO. Available is olanzapine 5 mg orally disintegrating tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

A. There is no indication of an emergency based on black stools alone without other concerning symptoms such as severe abdominal pain, cramping, or signs of gastrointestinal bleeding.
B. While gathering more information about the client's diet may be helpful in some cases, it does not address the specific concern about the black stools related to iron supplementation.
C. Unless there are other concerning symptoms, such as gastrointestinal bleeding or significant discomfort, this situation does not typically warrant an immediate visit to the office. It can be managed with reassurance and education over the phone.
D. Iron supplements commonly cause stools to turn black due to the way iron is metabolized in the digestive system. This change in stool color is known as "iron-induced blackening." It occurs because iron supplements contain iron salts that undergo chemical reactions in the gastrointestinal tract, resulting in the production of iron sulfide compounds that impart a black color to the stool.

A. Clamping the chest tubes is contraindicated because it can lead to tension pneumothorax, a life- threatening condition where air accumulates in the pleural space under pressure. If the chest tube becomes disconnected, the nurse should immediately place the end of the tube in sterile water to maintain the water seal and prevent air from entering the pleural space.
B. The drainage container must always be kept below the level of the client's chest. This position allows gravity to facilitate drainage from the pleural space into the collection chamber. If the container is positioned above the client's chest, drainage could potentially flow back into the pleural space, leading to complications.
C. It is essential to monitor and record the amount and characteristics of drainage regularly. Emptying the collection container at least once every shift ensures accurate measurement of drainage output and helps in assessing the client's response to treatment.
D. The water-seal chamber of the chest drainage system maintains the desired amount of suction (usually
-20 cm H2O) to facilitate lung re-expansion. This chamber should be filled with sterile water to the recommended level, usually marked on the device. Adding tap water can introduce contaminants and should be avoided.