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Aplastic anemia results in an inability to absorb vitamin B12: This statement is incorrect. Aplastic anemia is not related to the absorption of vitamin B12. It primarily involves a decrease in the production of blood cells by the bone marrow.

Aplastic anemia results in an increased rate of RBC destruction: This statement is incorrect. Aplastic anemia is not associated with an increased rate of RBC destruction. Instead, it is characterized by a reduction in the number of blood cells produced by the bone marrow.

Aplastic anemia is associated with a decreased intake of iron: This statement is incorrect. Aplastic anemia is not related to a decreased intake of iron. It is primarily a disorder of bone marrow function leading to insufficient production of blood cells.

Elevate the head of the bed 45": Do not elevate the head of the bed more than 15 degrees. Elevating the head of the bed can increase the risk of bleeding from the insertion site.

Keep the affected leg slightly flexed: The affected leg should be kept straight to prevent movement at the insertion site, which can cause bleeding.

Keep the client NPO for 4 hr: There is typically no need to keep the client NPO for an extended period after a cardiac catheterization. However, individual protocols may vary, and the nurse should follow the specific instructions provided by the healthcare provider.

Myringotomy: Myringotomy is a procedure involving the insertion of tubes into the eardrum to treat conditions such as chronic ear infections. This procedure is not associated with a significant risk of deep-vein thrombosis.

Cataract extraction: Cataract extraction is a procedure to remove a cloudy lens from the eye. This surgery is not typically associated with a high risk of deep-vein thrombosis.

Laparoscopic appendectomy: Laparoscopic appendectomy, a minimally invasive procedure to remove the appendix, is generally associated with a lower risk of deep-vein thrombosis compared to major orthopedic surgeries like hip arthroplasty.

Tissue integrity: While assessing tissue integrity is important, ensuring airway patency takes precedence in the immediate postoperative period, especially following a procedure involving the larynx. Maintaining a patent airway is a critical priority.

Pain severity: Pain assessment is important, but it is not the primary concern immediately postoperatively in the context of a partial laryngectomy. Airway patency is of higher priority.

Wound drainage: While assessing wound drainage is important for monitoring surgical sites, it is not the first priority in the immediate postoperative period following a partial laryngectomy. Airway patency is a more critical concern.

Regular moderate exercise: While regular exercise is beneficial for overall health, it is not specifically cited as a primary preventive measure for chronic bronchitis. However, exercise can contribute to overall respiratory health and well-being.

Maintenance of ideal weight: Maintaining an ideal weight is important for overall health, but it is not identified as a specific preventive measure for chronic bronchitis.

Annual influenza immunization: Influenza immunization is important for preventing influenza (flu) and its complications. While individuals with chronic bronchitis may be at increased risk for respiratory infections, annual influenza immunization is not a direct preventive measure for chronic bronchitis itself.

Bradypnea: Bradypnea refers to abnormally slow breathing. In the context of postoperative atelectasis and hypoxia, the client is more likely to exhibit tachypnea (rapid breathing) as the body attempts to compensate for reduced oxygen levels.

Bradycardia: Bradycardia is an abnormally slow heart rate. While hypoxia can lead to changes in heart rate, it is more common to observe tachycardia (increased heart rate) as a compensatory response to decreased oxygen levels.

Lethargy: Lethargy refers to a state of drowsiness or fatigue. While hypoxia can lead to lethargy, it is not a specific respiratory manifestation. Other respiratory signs, such as increased respiratory rate and retractions, are more likely to be observed.

The laboratory values are the same as the previous test values: This is unlikely in DIC. In an acute episode of DIC, there is usually a significant disturbance in coagulation values due to the consumption of clotting factors and the development of clotting abnormalities.

The laboratory values are within the expected reference range: In DIC, the coagulation values are usually not within the expected reference range. Instead, they are prolonged, reflecting the imbalance in the coagulation system.

The laboratory values are decreased: This is not typical for DIC. In DIC, the issue is not a decrease in clotting factors but rather their consumption, leading to an overall imbalance in the coagulation system.

Remove the catheter: Removing the catheter may not be the immediate priority. The nurse should focus on preventing further air entry into the circulation and addressing the symptoms.

Replace the infusion system: While ensuring that the infusion system is intact is important, it is not the primary action needed to manage an air embolism.

Prepare for chest tube insertion: Chest tube insertion is not the primary intervention for an air embolism. The focus should be on preventing the progression of the embolism and providing supportive care.

A friction rub is a sound caused by the rubbing of inflamed pericardial layers and is not classified as a heart sound like S1 or S2. It is unrelated to the sequence of heart sounds.

A split S₂ occurs during the closure of the aortic and pulmonary valves and is heard after S1, not before.

S3, or the ventricular gallop, occurs shortly after S2 during early diastole and indicates rapid ventricular filling. It is not heard before S1.