A nurse is preparing to administer lithium 300 mg PO every 8 hr. Available is lithium carbonate 150 mg capsules. How many capsules should the nurse administer per dose?

(Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Keeping the drainage system below the level of the client's chest prevents backflow of fluid or air into the pleural space and maintains negative pressure in the system.

a) Disconnecting the chest tube from the drainage system during transport is dangerous and can cause pneumothorax, infection, or bleeding. The chest tube should remain connected to the drainage system at all times unless ordered by the provider.
b) Emptying the collection chamber prior to transport is unnecessary and can interfere with accurate measurement of drainage. The collection chamber should be emptied only when it is full or at the end of each shift.
c) Clamping the chest tube prior to transferring the client to a wheelchair is contraindicated and can cause tension pneumothorax, as it prevents air from escaping the pleural space. The chest tube should only be clamped for a brief period when changing the drainage system or checking for air leaks, and only with a provider's order.

Heparin is an anticoagulant that prevents the formation of new clots and the extension of existing clots. It is the drug of choice for treating acute pulmonary embolism, which is a life-threatening condition caused by a blood clot that travels to the lungs and blocks a pulmonary artery.

a) Dexamethasone is a corticosteroid that reduces inflammation and suppresses immune response. It is not indicated for treating pulmonary embolism, but it may be used for other pulmonary conditions, such as asthma or COPD.
b) Atropine is an anticholinergic that blocks the action of acetylcholine and increases heart rate and cardiac output. It is not indicated for treating pulmonary embolism, but it may be used for bradycardia or asystole.
d) Furosemide is a loop diuretic that increases urine output and reduces fluid volume and blood pressure. It is not indicated for treating pulmonary embolism, but it may be used for heart failure or edema.