How does hypoventilation affect the blood's pH?
Less H and HCO3 form, increasing the blood's pH.
More H and HCO3 form, increasing the blood's pH.
Less H and HCO3- form, decreasing the blood's pH.
More H and HCO3 form, decreasing the blood's pH.
The Correct Answer is D
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-.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Hyperglycemia: Hyperglycemia is characteristic of diabetes mellitus, not diabetes insipidus. Diabetes insipidus involves an issue with antidiuretic hormone (ADH) and water balance, not glucose regulation.
B. Polydipsia: This is a hallmark symptom of diabetes insipidus. It refers to excessive thirst due to the body’s inability to retain water, leading to dehydration and compensatory increased fluid intake.
C. Weight gain: Weight gain is not typically associated with diabetes insipidus. The condition usually leads to weight loss due to fluid loss.
D. Oliguria: Oliguria (reduced urine output) is the opposite of what occurs in diabetes insipidus. The condition is characterized by polyuria, or excessive urination, due to the kidneys' inability to concentrate urine.
Correct Answer is D
Explanation
Cirrhosis is a chronic liver disease that causes fibrosis, nodular regeneration, portal hypertension, and liver failure. Cirrhosis can cause various symptoms and signs such as nausea, vomiting, abdominal pain, pruritus, edema, ascites, jaundice, spider angiomas, palmar erythema, gynecomastia, splenomegaly, varices, hepatic encephalopathy, and coagulopathy. Cirrhosis can also cause elevated liver enzymes such as alanine aminotransferase and aspartate aminotransferase due to hepatocellular injury or necrosis.
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