The nurse provides care for a client immediately after a motor vehicle accident. The nurse notes BP 90/52 mmHg, absent breath sounds over the right lung, shallow RR 28 breaths/minute, and displacement of the trachea to the left side. Which explanation is correct for these findings?
Hemothorax
Absorption atelectasis
Tension pneumothorax
Hypovolemic shock
The Correct Answer is C
Choice A reason: Hemothorax is not the correct explanation because it is a condition where blood accumulates in the pleural space, which is the area between the lungs and the chest wall. Hemothorax can cause low blood pressure, rapid breathing, and reduced breath sounds, but it does not cause tracheal deviation, which is a sign of increased pressure in the chest.
Choice B reason: Absorption atelectasis is not the correct explanation because it is a condition where the alveoli, which are the tiny air sacs in the lungs, collapse due to lack of oxygen. Absorption atelectasis can cause reduced breath sounds, but it does not cause low blood pressure, rapid breathing, or tracheal deviation, which are signs of a life-threatening emergency.
Choice C reason: Tension pneumothorax is the correct explanation because it is a condition where air leaks into the pleural space and creates a one-way valve that prevents the air from escaping. This causes the pressure in the chest to increase, which compresses the lung, the heart, and the great vessels. Tension pneumothorax can cause low blood pressure, rapid breathing, absent breath sounds, and tracheal deviation, which are signs of a medical emergency that requires immediate treatment.
Choice D reason: Hypovolemic shock is not the correct explanation because it is a condition where the body loses a large amount of blood or fluid, which reduces the blood volume and the blood pressure. Hypovolemic shock can cause low blood pressure and rapid breathing, but it does not cause absent breath sounds or tracheal deviation, which are signs of a chest injury.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Increased serum hydrostatic pressure is not the best explanation for the edema because it is caused by fluid overload, not malnutrition. Fluid overload can result from heart failure, kidney failure, or excessive fluid intake.
Choice B reason: Increased kidney filtration pressure is not the best explanation for the edema because it is caused by increased blood flow to the kidneys, not malnutrition. Increased blood flow to the kidneys can result from hypertension, diabetes, or renal artery stenosis.
Choice C reason: Decreased capillary osmotic pressure is the best explanation for the edema because it is caused by low plasma protein levels, which are common in malnutrition. Low plasma protein levels reduce the force that pulls fluid back into the capillaries from the interstitial space, leading to fluid accumulation in the tissues.
Choice D reason: Intracellular dehydration is not the best explanation for the edema because it is caused by loss of water from the cells, not malnutrition. Loss of water from the cells can result from hypernatremia, hyperglycemia, or osmotic diuresis.
Correct Answer is B
Explanation
Choice A reason: Glomerulonephritis is an inflammation of the glomeruli, the filtering units of the kidneys. It can cause damage to the renal tissue and lead to intrinsic acute kidney injury, not prerenal acute kidney injury.
Choice B reason: Fluid volume deficit is a condition in which the body loses more fluid than it takes in. It can cause hypovolemia, which reduces the blood flow to the kidneys and impairs their function. This is the most common cause of prerenal acute kidney injury, which is a result of decreased perfusion to the kidneys.
Choice C reason: Neurogenic bladder is a dysfunction of the bladder caused by a nerve problem. It can affect the ability to store or empty urine. It can cause urinary retention, which increases the pressure in the urinary tract and damages the kidneys. This is a type of postrenal acute kidney injury, which is a result of obstruction to the urine outflow.
Choice D reason: Renal calculus is a solid mass formed from crystals in the urine. It can block the ureter, the tube that carries urine from the kidney to the bladder. It can cause hydronephrosis, which is a swelling of the kidney due to accumulation of urine. This is another type of postrenal acute kidney injury.
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