Which statement is true regarding hemophilia?
Hemophilia is not hereditary in nature.
Hemophilia can be treated by replacement therapy.
Hemophilia is an X-linked dominant genetic disorder.
Hemophilia B is the most common form of hemophilia.
The Correct Answer is B
Choice A rationale:
Hemophilia is a hereditary disorder caused by a deficiency of specific clotting factors, and it is indeed hereditary in nature. This statement is incorrect.
Choice B rationale:
Hemophilia is a bleeding disorder where the blood does not clot properly. Replacement therapy, which involves infusing clotting factor concentrates, is a standard treatment for hemophilia. This statement is correct.
Choice C rationale:
Hemophilia is an X-linked recessive genetic disorder, not dominant. Males are more commonly affected because they have only one X chromosome, and if it carries the defective gene, they will have hemophilia. Females have two X chromosomes, and if one X chromosome carries the defective gene, the other X chromosome can compensate, making them carriers but not typically affected.
Choice D rationale:
Hemophilia A is the most common form of hemophilia, not hemophilia B.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale:
The patient's symptoms of leg pain that worsens at night and occurs when the legs are elevated but improves when they are dangled are indicative of peripheral arterial disease (PAD) PAD is a condition caused by the narrowing of arteries in the legs due to atherosclerosis. This narrowing restricts blood flow to the muscles, causing pain, especially during activities or positions that demand increased blood flow like walking or elevating the legs.
Choice B rationale:
Lymphatic obstruction typically does not cause pain in the same manner described by the patient. Lymphatic obstruction may cause swelling and discomfort, but it usually does not lead to pain that worsens with elevation and improves with dangling.
Choice C rationale:
Chronic venous insufficiency can cause leg pain and swelling, especially when standing for extended periods. However, the characteristic of pain worsening at night and with leg elevation points more towards arterial issues like PAD rather than venous insufficiency.
Choice D rationale:
Musculoskeletal abnormalities could cause localized pain, but the pattern described by the patient (worsening at night, relief with dangling) is not typical of musculoskeletal issues. PAD, on the other hand, often presents with these specific symptoms due to compromised blood flow to the muscles in the legs.
Correct Answer is D
Explanation
Choice A rationale:
Stenosis of the heart valves typically leads to murmurs and changes in heart sounds but does not directly impact blood pressure regulation.
Choice B rationale:
Decreased adrenergic sensitivity might lead to lower heart rate and blood pressure, not an increase in systolic blood pressure as seen in this case.
Choice C rationale:
Increased parasympathetic activity would lead to decreased heart rate, not an increase in systolic blood pressure as observed in the patient.
Choice D rationale:
Loss of elasticity in arterial vessels is the correct answer. With aging, arterial walls become less flexible and more rigid due to the accumulation of calcium and collagen. This loss of elasticity results in increased systolic blood pressure, which is the top number in a blood pressure reading. The diastolic pressure, represented by the bottom number, does not usually increase significantly with age. This change is a result of arteriosclerosis, which commonly occurs in elderly individuals.
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