A neonate born with ambiguous genitalia is diagnosed with congenital adrenal hyperplasia (CAH). This is an autosomal recessive disorder which causes an overproduction of:
Androgens
Vitamin K
Gonadotropin
Vitamin D
The Correct Answer is A
The correct answer is a) Androgens.
Choice A reason:
Congenital adrenal hyperplasia (CAH) is a group of genetic disorders affecting the adrenal glands, which are responsible for producing vital hormones such as cortisol, aldosterone, and androgens. In CAH, there is a deficiency of the enzyme 21-hydroxylase, which is crucial for the synthesis of cortisol and aldosterone. As a result, the adrenal glands overproduce androgens, leading to symptoms such as ambiguous genitalia in newborns, early puberty, and rapid growth. Androgens are male sex hormones, including testosterone, which play a significant role in the development of male characteristics.
Choice B reason:
Vitamin K is a fat-soluble vitamin essential for blood clotting and bone health. It is not related to the overproduction of hormones in congenital adrenal hyperplasia. Vitamin K deficiency can lead to bleeding disorders, but it does not cause the symptoms associated with CAH, such as ambiguous genitalia or early puberty. Therefore, this choice is incorrect.
Choice C reason:
Gonadotropins are hormones produced by the pituitary gland that stimulate the gonads (ovaries and testes) to produce sex hormones and gametes (eggs and sperm). While gonadotropins play a role in sexual development and reproduction, they are not overproduced in congenital adrenal hyperplasia. The primary issue in CAH is the overproduction of androgens due to enzyme deficiencies in the adrenal glands. Therefore, this choice is incorrect.
Choice D reason:
Vitamin D is a fat-soluble vitamin essential for calcium absorption and bone health. It is not related to the overproduction of hormones in congenital adrenal hyperplasia. Vitamin D deficiency can lead to bone disorders such as rickets in children and osteomalacia in adults, but it does not cause the symptoms associated with CAH. Therefore, this choice is incorrect.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
The correct answer is d. Frequent serial casting is tried first
Choice A reason:
Infants do not outgrow clubfoot on their own. Without treatment, the condition can lead to significant disability and difficulty walking. Early intervention is crucial to correct the deformity and ensure proper foot function.
Choice B Reason:
Surgical intervention is not the first line of treatment for mild cases of clubfoot. Surgery is typically reserved for severe cases or when nonsurgical methods, such as casting, have failed. The goal is to correct the foot’s position using less invasive methods whenever possible.
Choice C Reason:
Traction with foot manipulation is not a standard treatment for clubfoot. The primary nonsurgical treatment involves the Ponseti method, which includes gentle manipulation and serial casting to gradually correct the foot’s position.
Choice D Reason:
Frequent serial casting, known as the Ponseti method, is the first line of treatment for clubfoot. This method involves weekly manipulation and casting of the foot to gradually move it into the correct position. It is highly effective and is the preferred initial treatment for most cases of clubfoot.
Correct Answer is ["A"]
Explanation
Choice A reason:
A specific gravity of 1.010 indicates that the child’s urine is adequately diluted, suggesting proper hydration. Normal urine specific gravity ranges from 1.005 to 1.030. A value of 1.010 falls within this range and indicates that the kidneys are functioning well and the child is not dehydrated.
Choice B reason:
Moist mucous membranes are a sign of adequate hydration. When a child is well-hydrated, the mucous membranes in the mouth and other areas remain moist. This is a positive indicator that oral rehydration therapy has been effective in restoring the child’s fluid balance.
Choice C reason:
Capillary refill time of less than 3 seconds is another indicator of proper hydration and good peripheral perfusion. This means that the blood is circulating well throughout the body, and the tissues are receiving adequate oxygen and nutrients. A capillary refill time of less than 3 seconds is considered normal and suggests effective rehydration.
Choice D reason:
A sunken anterior fontanelle is a sign of dehydration in infants. When the fontanelle is sunken, it indicates that the child has lost a significant amount of fluid. Therefore, this finding does not indicate that oral rehydration therapy has been effective. Instead, it suggests that the child may still be dehydrated.
Choice E reason:
A heart rate of 146/min is elevated for an 8-month-old child1. Normal heart rates for infants range from 80 to 160 beats per minute. While this heart rate is within the upper limit of normal, it can also be a sign of dehydration or other stressors. Therefore, it is not a definitive indicator of effective rehydration therapy.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today