A nurse is teaching a class about oxygen transport in the cardiopulmonary system. Which of the following transports oxygen in the blood?
Lymphocytes
Neutrophils
Platelets
Hemoglobin
The Correct Answer is D
A. Lymphocytes are a type of white blood cell that plays a crucial role in the immune system, specifically in the response to infections and in immune regulation. They do not have a role in the transport of oxygen in the blood.
B. Neutrophils are another type of white blood cell that is essential for fighting bacterial infections. They are part of the body's immune response but do not transport oxygen.
C. Platelets are small cell fragments that are crucial for blood clotting and wound repair. They do not have a role in oxygen transport.
D. Hemoglobin is the primary molecule responsible for transporting oxygen in the blood. It is a protein found in red blood cells (erythrocytes) that binds to oxygen in the lungs and releases it in tissues throughout the body. Hemoglobin carries the majority of oxygen in the bloodstream and is essential for effective oxygen transport and delivery.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Increasing sodium intake would exacerbate hypernatremia, not correct it. Hypernatremia is characterized by an excess of sodium in the blood, so the goal of treatment is to lower sodium levels, not increase them.
B. Infusing hypotonic IV fluids, such as 0.45% NaCl or D5W (5% dextrose in water), helps to dilute the high sodium concentration in the blood and can assist in correcting hypernatremia. Hypotonic fluids move water into cells and help balance the sodium levels by promoting hydration and lowering the sodium concentration.
C. Sodium polystyrene sulfonate (Kayexalate) is used to treat hyperkalemia (elevated potassium levels), not hypernatremia. It works by exchanging potassium for sodium in the gastrointestinal tract and would not address hypernatremia.
D. Implementing a fluid restriction is generally not the best approach for treating hypernatremia. In fact, fluid restriction could worsen hypernatremia by limiting the client's fluid intake and not addressing the sodium imbalance. The primary goal in hypernatremia is usually to rehydrate the patient with appropriate fluids.
Correct Answer is A
Explanation
A. Slow and steady bubbling in the suction control chamber is expected and indicates that the system is functioning properly. It is designed to regulate the pressure within the chest cavity by allowing excess air and fluid to escape, ensuring that the lungs can re-expand properly
B. Checking for leaks is are unnecessary as the system is functioning as expected.
C. Checking the suction control outlet is are unnecessary as the system is functioning as expected.
D. Clamping the chest tube is are unnecessary as the system is functioning as expected.
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