at 3 4 weeks of pregnancy the breast changes include
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HESI RN

Reproductive System Exam Questions

1. At 3-4 weeks of pregnancy, the breast changes include:

Correct answer: C

Rationale: At 3-4 weeks of pregnancy, breast changes commonly involve tenderness due to hormonal fluctuations. Darkening of the nipple (Choice A) typically occurs later in pregnancy. Prickling, tingling sensations (Choice B) are more associated with early pregnancy due to increased blood flow to the breast area. Colostrum production (Choice D) usually begins later in pregnancy, closer to the end of the third trimester.

2. Which of the following structures is responsible for the production of sperm?

Correct answer: C

Rationale: The testes are the male reproductive organs responsible for the production of sperm through a process called spermatogenesis. The epididymis is a structure where sperm mature and are stored temporarily. Seminal vesicles produce a significant portion of the fluid that ultimately becomes semen, but they do not produce sperm. The prostate gland contributes additional fluid to semen but does not produce sperm. Therefore, the correct answer is the testes.

3. Which of the following hormone ratios is MOST likely to be increased in a patient with PCOS?

Correct answer: B

Rationale: In patients with Polycystic Ovary Syndrome (PCOS), the LH/FSH ratio is most likely to be increased. This hormonal imbalance is a key characteristic of PCOS, where elevated LH levels relative to FSH contribute to the pathophysiology of the condition. Choice A, progesterone/estrogen ratio, is not typically a defining feature of PCOS. Choice C, FSH/LH ratio, is the reverse of what is commonly observed in PCOS. Choice D, glucagon/insulin ratio, is not directly related to the hormonal imbalances seen in PCOS.

4. At 8-12 weeks of pregnancy, the breast changes include:

Correct answer: D

Rationale: At 8-12 weeks of pregnancy, the breast changes typically include the onset of colostrum production, not just tenderness. Colostrum is the first milk produced by the mammary glands during pregnancy. While some women may experience prickling or tingling sensations, prominent and mobile nipples, and darkening of the nipple, the key change during this time period is the production of colostrum. This substance is rich in antibodies and important for the newborn's initial nutrition. Therefore, the correct answer is not listed among the choices provided.

5. Which one is not a barrier method for birth control?

Correct answer: D

Rationale: The correct answer is D, Intrauterine Devices (IUDs). Barrier methods of birth control physically block sperm from reaching the egg. Diaphragms, cervical caps, and vaults are examples of barrier methods as they create a barrier that prevents sperm from reaching the cervix. In contrast, IUDs work by altering the cervical mucus and uterine lining, making it difficult for sperm to reach the egg, but they do not physically block sperm like barrier methods do.

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