A patient’s hemoglobin is severely low and she is complaining of being overly tired and fatigued. You are educating her on the role hemoglobin has with oxygenation and perfusion. You will know she understands the role of hemoglobin when she tells you hemoglobin transports:
Carbon Monoxide
Oxyhemoglobin
Carbon Dioxide
Carboxyhemoglobin
The Correct Answer is B
Hemoglobin is a protein found in red blood cells that plays a crucial role in transporting oxygen from the lungs to the body's tissues and organs. When oxygen is breathed in, it binds to the hemoglobin in red blood cells, forming oxyhemoglobin. This oxyhemoglobin is then transported throughout the body via the circulatory system, delivering oxygen to the cells that need it
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Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
: Chest tube placement is done to remove air or fluid from the pleural space, which is the area between the lungs and the chest wall. The chest tube drainage system is an important tool to monitor and manage the drainage from the chest tube.
It is essential that the chest tube drainage system is placed below the level of the patient's chest and the site of insertion. This is necessary to create a continuous drainage system by allowing gravity to assist in the flow of air or fluid out of the pleural space. If the chest tube drainage system is placed above the insertion site, the fluid will not drain properly, which can cause the fluid to back up into the patient's chest cavity, leading to complications such as pneumothorax or hemothorax.
Therefore, the appropriate statement regarding a chest tube is that the chest tube drainage system must be placed below the site of insertion.
Correct Answer is A
Explanation
A. Respiratory acidosis.
COPD is a chronic lung disease that can lead to an accumulation of carbon dioxide (CO2) in the body. This can cause respiratory acidosis, a condition in which the blood pH is lower than normal due to an excess of CO2.
In respiratory acidosis, the partial pressure of carbon dioxide (PaCO2) in the blood is increased and the pH is decreased. The kidneys atempt to compensate for the acidosis by excreting more acid in the urine and retaining more bicarbonate, but this compensation is usually not enough to fully correct the problem.
Metabolic alkalosis (option B) is a condition in which the blood pH is higher than normal due to an excess of bicarbonate in the blood. This is usually caused by loss of acid from the body, such as through vomiting or use of diuretics.
Respiratory alkalosis (option C) is a condition in which the blood pH is higher than normal due to a decrease in PaCO2. This can be caused by hyperventilation, which leads to excessive elimination of CO2 from the lungs.
Metabolic acidosis (option D) is a condition in which the blood pH is lower than normal due to an excess of acid in the blood. This can be caused by a variety of factors, including kidney failure or lactic acidosis.
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