If a child has one parent with Marfan syndrome, what is the likelihood that the child will have Marfan syndrome?
10% chance
25% chance
50% chance
100% chance
The Correct Answer is C
Marfan syndrome is a genetic disorder that affects the connective tissue, causing problems with the heart, blood vessels, eyes, bones, and joints. It is caused by a mutation in the FBN1 gene, which encodes for a protein called fibrillin-1. Marfan syndrome follows an autosomal dominant pattern of inheritance, which means that only one copy of the mutated gene is needed to cause the disorder. A person with Marfan syndrome has a 50% chance of passing on the mutated gene to each child, regardless of the gender of the parent or the child.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
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.
Correct Answer is B
Explanation
A strain is an injury to a muscle or a tendon that occurs when it is stretched or torn beyond its normal range of motion. Strains can result from overextension of muscles or tendons, such as lifting a heavy object, twisting or bending awkwardly, or performing repetitive motions. Strains can cause bleeding and swelling in the affected area, as well as pain and reduced function.
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