The nurse places a male patient in which position for rectal examination?

Correct Answer: D

Rationale: The correct answer is D, the left lateral position with knees and hips flexed. This position allows for better visualization and access to the rectal area. The patient's left side is facing up, which helps in maintaining comfort and stability during the examination. Knees and hips flexed further facilitate the examination process. A: Lithotomy position is used for gynecological exams, not rectal exams. B: Prone position with knees fully extended does not provide adequate access to the rectal area. C: Bending over the table with feet everted is not an appropriate position for a rectal examination as it does not allow for proper visualization and access.

Correct Answer: B

Rationale: The correct answer is B. Running 7 to 8 miles daily can lead to amenorrhea due to excessive exercise-induced stress on the body, affecting hormone levels and menstrual cycle. This is known as exercise-induced amenorrhea. Choices A, C, and D do not directly correlate with amenorrhea. Choice A indicates a healthy calcium intake. Choice C suggests the presence of an IUD, which is not typically associated with amenorrhea. Choice D indicates a history of STI, which may not directly cause amenorrhea.

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.