Which nursing assessment indicates a positive reading of a tuberculin (TB) skin test?

A. Treatment is not needed if the client is asymptomatic.

Even asymptomatic pulmonary embolisms can lead to complications such as progression to symptomatic PE or development of chronic thromboembolic pulmonary hypertension. Therefore, treatment is necessary to prevent these complications.

B. Treatment is not needed if the pulmonary embolism is intermediate.

The severity of a pulmonary embolism is determined by various factors, including the size and location of the clot and the degree of obstruction in the pulmonary arteries. Intermediate-risk pulmonary embolisms still require treatment to prevent complications and reduce the risk of progression to a more severe or life-threatening condition.

C. Treatment is not needed if the client is hemodynamically stable.

Hemodynamic stability refers to the client's circulatory status and whether they are maintaining adequate blood flow to vital organs. While hemodynamically stable clients may not require aggressive interventions such as thrombolytic therapy or surgical embolectomy, they still require anticoagulant therapy to prevent further clot formation and reduce the risk of complications.

D. Treatment is needed for all clients who have a pulmonary embolism.

Pulmonary embolism (PE) is a serious and potentially life-threatening condition that requires prompt treatment. Regardless of the severity of symptoms or the client's hemodynamic stability, treatment is necessary to prevent complications and reduce the risk of recurrence. Treatment typically includes anticoagulant therapy to prevent further clot formation and may include additional interventions such as thrombolytic therapy or surgical interventions in certain cases.

A. Add tap water as needed to the suction control chamber.

This is not the correct action. The suction control chamber of a water-seal chest tube drainage system is typically filled with sterile water to the prescribed level by the healthcare provider during the initial setup. Adding tap water to the suction control chamber can disrupt the balance of the system and affect the prescribed suction level. The nurse should not add tap water without specific instructions from the healthcare provider.

B. Maintain the drainage container below the level of the client's chest.

This is the correct action. In a water-seal chest tube drainage system, it's important to keep the drainage container below the level of the client's chest. This positioning allows gravity to assist in the drainage of air or fluid from the pleural space into the drainage container. It also helps prevent backflow of fluid or air into the chest cavity, ensuring the effectiveness of the drainage system.

C. Empty the collection container every shift.

While it may be necessary to empty the collection container if it becomes full, emptying it every shift is not a set rule. The frequency of emptying the collection container should be based on the volume of drainage and the facility's policy. The nurse should monitor the collection container regularly and empty it when it reaches the appropriate level, typically around half full or as indicated by facility protocol.

D. Clamp the chest tubes if it becomes disconnected.

Clamping the chest tubes if they become disconnected is not recommended. It can lead to tension pneumothorax, a life-threatening condition where air accumulates in the pleural space and compresses the lung. If a chest tube becomes disconnected, the nurse should immediately assess the situation, secure the chest tube connections, and notify the healthcare provider for further management.