A patient has sharp, sudden chest pain and difficulty breathing. The physical exam reveals clammy skin and low blood pressure. The diagnostic procedure reveals inflammation in the saclike membrane of the heart muscle and a buildup of fluid. Which disorder is described?
Pericarditis
Valvular heart disease
Endocarditis
Congestive heart failure
The Correct Answer is A
This condition is an inflammation of the pericardium, which is the thin layer of tissue that surrounds and protects the heart. The inflammation can cause fluid to accumulate in the pericardial space, which can compress the heart and impair its function. The symptoms of pericarditis may include chest pain that worsens with breathing or lying down, shortness of breath, fever, chills, sweating, or low blood pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
More H and HCO3 form, decreasing the blood's pH.
Rationale: Hypoventilation is a condition where the breathing rate is too slow or shallow, resulting in insufficient removal of carbon dioxide (CO2) from the body. CO2 reacts with water (H2O) to form carbonic acid (H2CO3), which can dissociate into hydrogen ions (H+) and bicarbonate ions (HCO3-). Therefore, when CO2 accumulates in the blood due to hypoventilation, more H2CO3 is formed, which lowers the blood's pH by increasing the concentration of H+ and HCO3-.
Correct Answer is B
Explanation
Parathyroid hormone (PTH) is a hormone produced by the parathyroid glands, which are located behind the thyroid gland in the neck. PTH regulates the calcium levels in the blood by stimulating the release of calcium from the bones, increasing the absorption of calcium from the intestines, and decreasing the excretion of calcium from the kidneys. When the calcium levels in the blood are low, PTH is secreted to raise them back to normal.
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