NURS 231/NURS231 Module 10 V3 |
Pathophysiology Q&A with Rationale | Portage
Learning
1. A 65-year-old male presents with urinary urgency, frequency, and a weak urinary stream.
Digital rectal examination (DRE) reveals a smooth, enlarged prostate. Which condition is most
likely responsible for these symptoms?
A. Benign Prostatic Hyperplasia (BPH)
B. Prostatitis
C. Prostate cancer
D. Urethral stricture
Correct Answer: A
Explanation: Benign Prostatic Hyperplasia (BPH) is the most common cause of lower
urinary tract symptoms in aging men. The pathophysiology involves the proliferation of
stromal and epithelial cells in the periurethral zone of the prostate. A smooth, firm, and
non-tender enlargement on DRE is characteristic of BPH rather than malignancy, which
typically presents as a hard, nodular mass.
2. A 28-year-old female experiences severe pelvic pain during menstruation and dyspareunia.
Laparoscopy reveals endometrial-like tissue on the ovaries and peritoneum. What is the
pathophysiological hallmark of this disease?
A. Infection of the upper reproductive tract
,B. Excessive production of androgens by the ovaries
C. Hyperplasia of the uterine myometrium
D. Ectopic growth of functional endometrial tissue
Correct Answer: D
Explanation: Endometriosis is characterized by the presence of functional endometrial
tissue outside the uterine cavity. This tissue responds to hormonal fluctuations of the
menstrual cycle, leading to cyclic bleeding, inflammation, and scarring. Over time, this
process results in the formation of adhesions and significant pelvic pain.
3. Which of the following organisms is the most frequent cause of Pelvic Inflammatory
Disease (PID)?
A. Staphylococcus aureus
B. Neisseria gonorrhoeae
C. Treponema pallidum
D. Human Papillomavirus
Correct Answer: B
Explanation: Pelvic Inflammatory Disease is most commonly caused by sexually
transmitted infections, with Neisseria gonorrhoeae and Chlamydia trachomatis being the
primary pathogens. These organisms ascend from the endocervix to the uterus, fallopian
, tubes, and ovaries. Failure to treat PID promptly can lead to chronic pelvic pain, infertility,
and an increased risk of ectopic pregnancy.
4. A patient is diagnosed with Polycystic Ovary Syndrome (PCOS). Which hormonal profile is
typically associated with this condition?
A. High androgens and insulin resistance
B. Low estrogen and high FSH
C. Low progesterone and low LH
D. High prolactin and high TSH
Correct Answer: A
Explanation: PCOS is a complex endocrine disorder characterized by hyperandrogenism
and ovulatory dysfunction. Insulin resistance plays a central role by stimulating excess
androgen production from the ovaries and decreasing sex hormone-binding globulin. This
hormonal imbalance leads to the clinical presentation of hirsutism, acne, and irregular
menstrual cycles.
5. Which stage of syphilis is characterized by the appearance of a painless chancre at the site
of inoculation?
A. Secondary stage
B. Latent stage
C. Primary stage
Pathophysiology Q&A with Rationale | Portage
Learning
1. A 65-year-old male presents with urinary urgency, frequency, and a weak urinary stream.
Digital rectal examination (DRE) reveals a smooth, enlarged prostate. Which condition is most
likely responsible for these symptoms?
A. Benign Prostatic Hyperplasia (BPH)
B. Prostatitis
C. Prostate cancer
D. Urethral stricture
Correct Answer: A
Explanation: Benign Prostatic Hyperplasia (BPH) is the most common cause of lower
urinary tract symptoms in aging men. The pathophysiology involves the proliferation of
stromal and epithelial cells in the periurethral zone of the prostate. A smooth, firm, and
non-tender enlargement on DRE is characteristic of BPH rather than malignancy, which
typically presents as a hard, nodular mass.
2. A 28-year-old female experiences severe pelvic pain during menstruation and dyspareunia.
Laparoscopy reveals endometrial-like tissue on the ovaries and peritoneum. What is the
pathophysiological hallmark of this disease?
A. Infection of the upper reproductive tract
,B. Excessive production of androgens by the ovaries
C. Hyperplasia of the uterine myometrium
D. Ectopic growth of functional endometrial tissue
Correct Answer: D
Explanation: Endometriosis is characterized by the presence of functional endometrial
tissue outside the uterine cavity. This tissue responds to hormonal fluctuations of the
menstrual cycle, leading to cyclic bleeding, inflammation, and scarring. Over time, this
process results in the formation of adhesions and significant pelvic pain.
3. Which of the following organisms is the most frequent cause of Pelvic Inflammatory
Disease (PID)?
A. Staphylococcus aureus
B. Neisseria gonorrhoeae
C. Treponema pallidum
D. Human Papillomavirus
Correct Answer: B
Explanation: Pelvic Inflammatory Disease is most commonly caused by sexually
transmitted infections, with Neisseria gonorrhoeae and Chlamydia trachomatis being the
primary pathogens. These organisms ascend from the endocervix to the uterus, fallopian
, tubes, and ovaries. Failure to treat PID promptly can lead to chronic pelvic pain, infertility,
and an increased risk of ectopic pregnancy.
4. A patient is diagnosed with Polycystic Ovary Syndrome (PCOS). Which hormonal profile is
typically associated with this condition?
A. High androgens and insulin resistance
B. Low estrogen and high FSH
C. Low progesterone and low LH
D. High prolactin and high TSH
Correct Answer: A
Explanation: PCOS is a complex endocrine disorder characterized by hyperandrogenism
and ovulatory dysfunction. Insulin resistance plays a central role by stimulating excess
androgen production from the ovaries and decreasing sex hormone-binding globulin. This
hormonal imbalance leads to the clinical presentation of hirsutism, acne, and irregular
menstrual cycles.
5. Which stage of syphilis is characterized by the appearance of a painless chancre at the site
of inoculation?
A. Secondary stage
B. Latent stage
C. Primary stage
