A nurse is caring for a client who has a hemoglobin of 10.8 g/dL and a hematocrit of 30%. The nurse should expect the client is at risk for which of the following conditions?
Cellular hypoxia
Fluid retention
Prolonged bleeding
Impaired immunity
The Correct Answer is A
Choice A rationale:
Cellular hypoxia occurs when cells do not receive enough oxygen to meet their metabolic demands. Hemoglobin is the protein in red blood cells that carries oxygen from the lungs to the tissues. A hemoglobin level of 10.8 g/dL is below the normal range for adults (14-18 g/dL), indicating that the client has anemia. Anemia reduces the oxygen-carrying capacity of the blood, which can lead to cellular hypoxia.
Here is a detailed explanation of how anemia can lead to cellular hypoxia:
Decreased oxygen-carrying capacity: Anemia results in fewer red blood cells or reduced hemoglobin levels within those cells. As a consequence, the blood's ability to transport oxygen to the tissues is diminished.
Impaired oxygen delivery: Oxygen is transported to the tissues through the bloodstream, attached to hemoglobin within red blood cells. With fewer red blood cells or reduced hemoglobin, the delivery of oxygen to the tissues is compromised.
Decreased oxygen availability at the cellular level: As oxygen delivery is impaired, less oxygen is available to the cells for metabolic processes. This insufficient oxygen supply leads to cellular hypoxia.
Impaired cellular function: Cells require oxygen to produce energy through a process called aerobic respiration. Cellular hypoxia disrupts this process, leading to impaired cellular function.
Tissue and organ dysfunction: When a significant number of cells within a tissue or organ experience hypoxia, the function of that tissue or organ can be compromised. This can manifest in various symptoms and complications, depending on the affected organs.
Common signs and symptoms of cellular hypoxia:
Fatigue Weakness
Shortness of breath Pale skin
Dizziness Headache Chest pain
Tachycardia (rapid heart rate) Cognitive impairment
Nursing Test Bank
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Related Questions
Correct Answer is A
Explanation
Rationale for Choice A:
Ineffective airway clearance is the most immediate and life-threatening concern in the postoperative period following a radical neck dissection. This procedure involves extensive removal of lymph nodes and tissues in the neck, which can significantly disrupt normal respiratory function and airway patency. Here's a detailed explanation of the factors contributing to this risk:
Altered Respiratory Anatomy: The surgical resection of tissues and lymph nodes can directly impact the structure and function of the airway. This includes potential narrowing of the trachea, vocal cord dysfunction, and impaired laryngeal movement, all of which can hinder effective airflow.
Thick, Copious Secretions: The surgical trauma and manipulation of tissues often lead to increased production of thick, tenacious secretions in the respiratory tract. These secretions can obstruct the airway, making it difficult for the patient to clear them effectively.
Impaired Cough Reflex: The surgical dissection may disrupt the nerves involved in the cough reflex, which is a crucial mechanism for clearing secretions from the airway. This further impedes the patient's ability to maintain a patent airway.
Risk of Aspiration: Accumulation of secretions in the airway elevates the risk of aspiration, which can lead to pneumonia and other serious complications.
Potential for Edema: Postoperative swelling in the neck tissues can further compress the airway, exacerbating the risk of obstruction.
Nursing Interventions for Ineffective Airway Clearance:
Prompt recognition and management of ineffective airway clearance are essential to prevent respiratory compromise and ensure patient safety. Here are key nursing interventions that should be prioritized:
Frequent Assessment: Continuously monitor respiratory rate, effort, breath sounds, oxygen saturation, and level of consciousness for any signs of respiratory distress.
Positioning: Elevate the head of the bed to 30-45 degrees to promote lung expansion and facilitate drainage of secretions. Suctioning: Regularly suction the airway to remove secretions, using aseptic technique and proper suctioning pressure.
Deep Breathing and Coughing Exercises: Encourage and assist the patient with deep breathing and coughing exercises to mobilize secretions.
Humidification: Provide humidified oxygen or use a nebulizer to help thin secretions and make them easier to expectorate.
Chest Physiotherapy: Perform chest physiotherapy techniques, such as percussion and vibration, to loosen secretions and promote their removal.
Monitoring Fluid Balance: Maintain adequate hydration to help thin secretions, while closely monitoring fluid intake and output to prevent fluid overload.
Addressing Other Choices:
While the other choices may also be relevant concerns in the postoperative period, they do not pose the same immediate threat to life as ineffective airway clearance.
Correct Answer is C
Explanation
Choice A rationale:
Recapping needles is a dangerous practice that significantly increases the risk of needlestick injuries.
The act of recapping involves directing the sharp end of the needle towards one's hand, creating a high likelihood of accidental puncture.
Even experienced healthcare professionals are susceptible to needlestick injuries during recapping.
Wastebaskets are not designed for the safe disposal of sharps and can easily be punctured, leading to potential exposure to bloodborne pathogens.
Choice B rationale:
While it is true that needles should not be recapped on ABG specimens, this option does not address the broader issue of safe needle disposal in general.
Focusing solely on ABG specimens could lead to the misconception that recapping is acceptable for other types of needles.
Choice D rationale:
Breaking needles in half is not recommended as a standard practice for needle disposal.
This action can create sharp fragments that are difficult to handle and can still cause injuries.
Sharps disposal containers are designed to safely contain intact needles and should be used as the primary method of disposal.
Choice C rationale:
Placing uncapped needles directly into a puncture-proof container is the safest and most recommended practice for needle disposal.
These containers are specifically designed to prevent needlestick injuries by shielding the sharps from accidental contact. They are typically made of hard plastic or metal and are clearly labeled for biohazard waste.
Using puncture-proof containers consistently for all needle disposal significantly reduces the risk of needlestick injuries among healthcare workers.
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