How does a nurse recognize when a patient has a testicular torsion?

Correct Answer: D

Rationale: The correct answer is D because testicular torsion presents with sudden onset of severe pain and swelling in the scrotum. This is due to the twisting of the spermatic cord, leading to compromised blood flow to the testicle. The severe pain is a key indicator of this emergency condition, as it indicates ischemia and necrosis of the testicle if not promptly treated. Choice A is incorrect because a light red glow on transillumination is not a typical finding in testicular torsion. Choice B is incorrect because testicular edema in torsion is usually associated with pain. Choice C is incorrect because a pulling sensation and dull ache are more commonly seen in conditions like epididymitis rather than testicular torsion.

Correct Answer: B

Rationale: The correct answer is B. Increasing exercise intensity can lead to decreased body fat percentage, impacting hormonal balance and causing irregular periods. This is known as athletic amenorrhea. Choice A is incorrect as it does not address the physiological impact of excessive exercise on menstrual cycles. Choices C and D are also incorrect as they refer to eating disorder behaviors, which are not directly related to the client's concern of irregular periods due to increased exercise.

Correct Answer: D

Rationale: The correct answer is D because crossing-over occurs between non-sister chromatids of homologous chromosomes during meiosis, not between sister chromatids. This genetic exchange results in genetic variation. Fragmentation is followed by regeneration in some organisms, asexual reproduction produces genetically identical offspring, and ovoviviparous embryos do get nourishment from the egg yolk.

Correct Answer: C

Rationale: The correct answer is C because progesterone's main function in the menstrual cycle is to maintain the endometrium lining. Progesterone is produced by the corpus luteum after ovulation, and it helps prepare the endometrium for implantation of a fertilized egg. This hormone ensures that the endometrium is thick and ready to support a potential pregnancy. Choice A is incorrect because progesterone is not responsible for stimulating the development of the corpus luteum; instead, it is produced by the corpus luteum itself. Choice B is incorrect because progesterone does not stimulate the development of the follicle. The follicle is primarily influenced by estrogen during the follicular phase of the menstrual cycle. Choice D is incorrect because ovulation is triggered by a surge in luteinizing hormone (LH), not progesterone. LH surge causes the release of the egg from the follicle.

Correct Answer: D

Rationale: Step-by-step rationale for why D is correct: 1. Testosterone is a key hormone for muscle growth. 2. It stimulates protein synthesis in muscles. 3. This leads to an increase in skeletal muscle size and mass. 4. Therefore, the correct answer is D. Summary: A: Testosterone does not directly boost basal metabolic rate. B: Testosterone can influence behavior, but this is not the primary function discussed in the question. C: Testosterone does not directly increase bone density.