Which of the following types of anemia is characterized by excessive destruction of erythrocytes?
Pernicious
Aplastic
Immunohemolytic
Iron-deficiency
The Correct Answer is C
A. Pernicious anemia is caused by vitamin B12 deficiency due to impaired absorption, not excessive destruction of erythrocytes.
B. Aplastic anemia results from the bone marrow's inability to produce enough blood cells, leading to a deficiency of all blood cell types, rather than the destruction of erythrocytes.
C. Immunohemolytic anemia is characterized by the immune system mistakenly attacking and destroying the body's own erythrocytes, leading to excessive destruction of red blood cells.
D. Iron-deficiency anemia is caused by insufficient iron to produce hemoglobin, resulting in low red blood cell production, but not excessive destruction of erythrocytes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. The ejaculatory ducts are formed by the union of the vas deferens and the seminal vesicles. Seminal fluid does not enter the ejaculatory ducts directly after leaving the epididymis.
B. The prostate gland contributes fluids to seminal fluid but is not the direct next location for the fluid after leaving the epididymis.
C. The seminal vesicle produces fluid that combines with sperm to form semen, but it is not the immediate next structure after the epididymis.
D. The vas deferens is the tube that transports sperm from the epididymis to the urethra. After leaving the epididymis, seminal fluid enters the vas deferens.
Correct Answer is D
Explanation
A. The ovaries are responsible for producing hormones such as estrogen and progesterone but do not directly produce lubrication during sexual excitement.
B. The cervix produces mucus that changes in consistency throughout the menstrual cycle but does not play a significant role in lubrication during sexual activity.
C. Skene's glands, located near the urethra, secrete fluid that is often compared to prostate fluid in males, but they do not play the primary role in vaginal lubrication during sexual excitement.
D. Bartholin's glands, located near the vaginal opening, secrete mucus that provides lubrication during sexual excitement, helping to reduce friction and enhance comfort during intercourse.
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