A 25-year-old G1P0 woman at 14 weeks estimated gestational age presents for prenatal care. She has no complaints. No significant past medical history. The patient is afebrile and vital signs are within normal limits. Physical examination is unremarkable. Laboratory findings are significant for the following:
Thyroid-stimulating hormone (TSH)
0.3 mIU/L (0.4–4.2 mIU/L)
Total T4
11.4 µg/dL (5.4–11.5 µg/dL)
Free total T4
0.7 ng/dL (0.7–1.8 ng/dL)
Which of the following is the most likely etiology of this patient’s laboratory findings?
Q12
A 13-year-old girl presents to her pediatrician with vaginal bleeding and abdominal pain. The patient states that this has happened sporadically over the past 4 months. She is currently experiencing these symptoms and has soaked through 1 pad today. She denies being sexually active or using any illicit substances. Her vitals are within normal limits, and physical exam is notable for a healthy young girl with a non-focal abdominal and pelvic exam. Which of the following is the best next step in management?
Q13
A 30-year-old woman, gravida 3, para 1, at 25 weeks' gestation comes to the physician because of mild itching of the vulva and anal region for 2 weeks. She has a history of 2 episodes of vulvovaginal candidiasis last year that both subsided following 1 week of treatment with butoconazole. Vital signs are within normal limits. Pelvic examination shows a uterus consistent in size with a 25-week gestation. There are no signs of vulvar or perianal erythema, edema, or fissures. Microscopy of an adhesive tape that was applied to the perianal region shows multiple ova. Which of the following is the most appropriate next step in management?
Q14
A 20-year-old G1P0 woman at 12 weeks estimated gestational age presents to the obstetric clinic for the first prenatal visit. She admits to being unsure of whether to keep or abort the pregnancy but now has finally decided to keep it. She says she is experiencing constant fatigue. Physical examination reveals conjunctival pallor. Her hemoglobin level is 10.1 g/dL. Which of the following additional features would likely be present in this patient?
Q15
A 28-year-old woman, gravida 2, para 1, at 14 weeks' gestation, comes to the physician with a 3-day history of abnormal vaginal discharge. She has not had fever, chills, or abdominal pain. One week ago, her 2-year-old daughter had a urinary tract infection that quickly resolved after antibiotic therapy. The patient reports that she is sexually active with one male partner and they do not use condoms. Vital signs are within normal limits. Pelvic examination shows an inflamed and friable cervix. There is mucopurulent, foul-smelling discharge from the cervical os. There is no uterine or cervical motion tenderness. Vaginal pH measurement shows a pH of 3.5. Which of the following is the most appropriate initial step in management?
Q16
A 20-year-old woman comes to the physician for contraceptive counseling. She has recently become sexually active with her boyfriend and expresses concerns because approximately 10 days ago the condom broke during intercourse. Her medical history is significant for deep vein thrombosis and pulmonary embolism. Urine pregnancy test is negative. After discussing different contraceptive options, the patient says, “I'd like to try the most effective method that works without hormones and would allow me to become pregnant at a later time.” The contraceptive method that best meets the patient's wishes has which of the following mechanisms?
Q17
A 28-year-old primigravida presents to the office with complaints of heartburn while lying flat on the bed at night and mild constipation that started a couple of weeks ago. She is 10 weeks pregnant, as determined by her last menstrual period. Her first menstruation was at 13 years of age and she has always had regular 28-day cycles. Her past medical history is insignificant. She does not smoke cigarettes or drink alcohol and does not take any medications. Her father died of colon cancer at 70 years of age, while her mother has diabetes and hypertension. Her vital signs include: temperature 36.9℃ (98.4℉), blood pressure 98/52 mm Hg, pulse 113/minute, oxygen saturation 99%, and respiratory rate 12 /minute. The physical examination was unremarkable, except for a diastolic murmur heard over the apex. Which of the following is considered abnormal in this woman?
Q18
A 52-year-old female presents with a primary complaint of amenorrhea for the past 6 months. She also reports dyspareunia, recurrent headache, and infrequent episodes of night sweats. Diagnostic work-up reveals increased serum FSH levels. Which additional laboratory findings would most likely be seen in this patient?
Q19
A 31-year-old female presents to her primary care physician with mild anxiety and complaints of mood swings lasting several months. The patient reports that the mood swings affect her work and personal relationships. In addition, she complains of increased irritability, breast tenderness, bloating, fatigue, binge-eating, and difficulty concentrating for 10 days prior to her menstrual period. The patient's symptoms increase in severity with the approach of menses but resolve rapidly on the first day of menses. She states that she is very sensitive to criticism of her work by others. She also snaps at her children and her husband. She has tried yoga to unwind, but with limited improvement. She is concerned that her behavior is affecting her marriage. The patient has no past medical history, and has regular periods every 24 days. She has had two normal vaginal deliveries. She uses condoms for contraception. Her mother has major depressive disorder. The physical exam is unremarkable. What is the most appropriate next step in the treatment of this patient?
Q20
A 23-year-old G1P0 female presents to her OB/GYN for her routine 36-week visit. Her current complaints include increased fatigue at the end of the day, and edema in her ankles. The patient’s physical examination is unremarkable except for inguinal adenopathy. Upon pelvic examination for cervical changes, the OB/GYN notices a vaginal chancre. The patient states that it is not painful when touched. Which of the following is the most likely diagnosis?
Prenatal Care US Medical PG Practice Questions and MCQs
Question 11: A 25-year-old G1P0 woman at 14 weeks estimated gestational age presents for prenatal care. She has no complaints. No significant past medical history. The patient is afebrile and vital signs are within normal limits. Physical examination is unremarkable. Laboratory findings are significant for the following:
Thyroid-stimulating hormone (TSH)
0.3 mIU/L (0.4–4.2 mIU/L)
Total T4
11.4 µg/dL (5.4–11.5 µg/dL)
Free total T4
0.7 ng/dL (0.7–1.8 ng/dL)
Which of the following is the most likely etiology of this patient’s laboratory findings?
A. Estrogen regulation of thyroxine-binding globulin secretion (TBG) (Correct Answer)
B. Estrogen mediated thyroid hyperplasia
C. Human chorionic gonadotropin (hCG) regulation of TBG
D. Progesterone regulation of TBG
E. Placental production of thyroxine
Explanation: ***Estrogen regulation of thyroxine-binding globulin secretion (TBG)***
- During pregnancy, **elevated estrogen levels** lead to increased synthesis of **thyroxine-binding globulin (TBG)** in the liver.
- This rise in TBG increases the total amount of thyroid hormones (**Total T4**) bound in the blood, maintaining a normal **free T4** despite a slightly lower **TSH** in early pregnancy, which is a normal physiological adaptation.
*Estrogen mediated thyroid hyperplasia*
- While estrogen does influence thyroid function, its primary effect is on **TBG synthesis**, not direct thyroid hyperplasia leading to these specific lab findings.
- **Thyroid hyperplasia** might occur in response to iodine deficiency or certain autoimmune conditions, not typically as a direct estrogen effect presenting with these labs.
*Human chorionic gonadotropin (hCG) regulation of TBG*
- **hCG** does have a weak TSH-like activity, which can suppress TSH and slightly increase free T4, particularly in the first trimester.
- However, hCG's primary interaction is with the TSH receptor, not direct regulation of **TBG secretion**.
*Progesterone regulation of TBG*
- **Progesterone** plays a crucial role in maintaining pregnancy but does not directly or significantly influence the synthesis or regulation of **TBG**.
- Its effects are more related to uterine and cervical changes.
*Placental production of thyroxine*
- The placenta does produce some hormones, but it does **not produce thyroxine** (T4).
- The primary source of thyroxine for both mother and fetus is the maternal thyroid gland.
Question 12: A 13-year-old girl presents to her pediatrician with vaginal bleeding and abdominal pain. The patient states that this has happened sporadically over the past 4 months. She is currently experiencing these symptoms and has soaked through 1 pad today. She denies being sexually active or using any illicit substances. Her vitals are within normal limits, and physical exam is notable for a healthy young girl with a non-focal abdominal and pelvic exam. Which of the following is the best next step in management?
A. Administer azithromycin and ceftriaxone
B. Perform hysteroscopy and biopsy
C. Perform a CT scan of the abdomen
D. Reassurance and discharge
E. Order a coagulation profile (Correct Answer)
Explanation: ***Order a coagulation profile***
- **Abnormal uterine bleeding (AUB)** in an adolescent often suggests an underlying **coagulopathy**, with **von Willebrand disease** being the most common cause.
- Given the patient's age, sporadic heavy bleeding, and lack of other obvious causes, investigating **bleeding disorders** is a critical next step.
*Administer azithromycin and ceftriaxone*
- This treatment targets **sexually transmitted infections (STIs)**, specifically **gonorrhea** and **chlamydia**.
- The patient explicitly denies being **sexually active**, making STIs an unlikely cause in this context, and there are no signs of infection.
*Perform hysteroscopy and biopsy*
- **Hysteroscopy** and **biopsy** are invasive procedures typically reserved for evaluating **structural abnormalities** or **malignancy** in cases of AUB.
- Given the patient's age and the sporadic nature of her bleeding, it is not the initial investigation.
*Perform a CT scan of the abdomen*
- A **CT scan of the abdomen** is a sophisticated imaging modality that might be used to identify **structural abnormalities** or **masses** in the abdomen or pelvis.
- However, it carries radiation risks and is not the first-line investigation for AUB, especially with a non-focal physical exam.
*Reassurance and discharge*
- Reassurance alone is inappropriate given the patient's persistent and heavy **vaginal bleeding** (soaking through a pad).
- This symptom requires further investigation to rule out significant underlying medical conditions, such as a **coagulopathy**.
Question 13: A 30-year-old woman, gravida 3, para 1, at 25 weeks' gestation comes to the physician because of mild itching of the vulva and anal region for 2 weeks. She has a history of 2 episodes of vulvovaginal candidiasis last year that both subsided following 1 week of treatment with butoconazole. Vital signs are within normal limits. Pelvic examination shows a uterus consistent in size with a 25-week gestation. There are no signs of vulvar or perianal erythema, edema, or fissures. Microscopy of an adhesive tape that was applied to the perianal region shows multiple ova. Which of the following is the most appropriate next step in management?
A. Ivermectin
B. Albendazole
C. Supportive therapy
D. Praziquantel
E. Pyrantel pamoate (Correct Answer)
Explanation: ***Pyrantel pamoate***
- The patient's symptoms (perianal itching) and the finding of **ova on adhesive tape** are classic for **pinworm infection** (enterobiasis). Pyrantel pamoate is a safe and effective treatment for pinworms during pregnancy.
- It is preferred over other antihelminthics due to its **poor systemic absorption**, minimizing exposure to the fetus, and its documented safety profile in pregnancy.
*Ivermectin*
- Ivermectin is primarily used for **strongyloidiasis** and **onchocerciasis**, not pinworms.
- Its safety in pregnancy is less established compared to pyrantel pamoate, and it is generally avoided during gestation unless absolutely necessary.
*Albendazole*
- Albendazole is an effective treatment for pinworms, but it is generally **contraindicated in the first trimester** of pregnancy due to potential teratogenicity and is only used in the second and third trimesters if the benefits outweigh the risks.
- Given the availability of safer alternatives like pyrantel pamoate, albendazole is not the most appropriate first-line choice for pinworms in pregnancy.
*Supportive therapy*
- While supportive therapy (e.g., hygiene measures) is important in managing pinworm infection, it is insufficient as the **sole treatment** for eradicating the parasites, especially with confirmed ova.
- **Pharmacological treatment** is necessary to kill the worms and prevent reinfection.
*Praziquantel*
- Praziquantel is the drug of choice for treating **schistosomiasis** and **tapeworm infections**.
- It is not effective against **pinworms**.
Question 14: A 20-year-old G1P0 woman at 12 weeks estimated gestational age presents to the obstetric clinic for the first prenatal visit. She admits to being unsure of whether to keep or abort the pregnancy but now has finally decided to keep it. She says she is experiencing constant fatigue. Physical examination reveals conjunctival pallor. Her hemoglobin level is 10.1 g/dL. Which of the following additional features would likely be present in this patient?
A. Decreased TIBC
B. Decreased exercise tolerance
C. Increased Transferrin Saturation
D. Pica (Correct Answer)
E. Onychorrhexis
Explanation: ***Pica***
- The patient's fatigue, conjunctival pallor, and hemoglobin of 10.1 g/dL at 12 weeks gestation are highly suggestive of **iron deficiency anemia**. **Pica** (cravings for non-nutritive substances like ice, dirt, or clay) is a common symptom of severe iron deficiency.
- This symptom reflects a compensatory mechanism or an attempt to replenish depleted iron stores.
*Decreased TIBC*
- In **iron deficiency anemia**, the total iron-binding capacity (**TIBC**) is typically **increased** as the body tries to maximize iron uptake due to low iron stores.
- A decreased TIBC would be characteristic of **anemia of chronic disease**, not iron deficiency.
*Increased Transferrin Saturation*
- **Transferrin saturation** measures the percentage of transferrin that is bound to iron. In **iron deficiency anemia**, iron stores are low, leading to **decreased transferrin saturation**.
- Increased transferrin saturation is seen in conditions like **hemochromatosis** or iron overload, which are not suggested by the patient's presentation.
*Decreased exercise tolerance*
- While **decreased exercise tolerance** is a common symptom of **anemia** due to reduced oxygen-carrying capacity, it is a general symptom of anemia and not as specific for iron deficiency as pica.
- The question asks for *additional features* likely to be present, and pica is a highly specific and often recognized symptom of iron deficiency.
*Onychorrhexis*
- **Onychorrhexis**, or longitudinal ridging and brittleness of the nails, can occur in **iron deficiency anemia**, but it is less specific than pica and often associated with more chronic or severe cases.
- **Koilonychia** (spoon nails) is a highly specific nail finding for chronic iron deficiency but onychorrhexis is a more general finding.
Question 15: A 28-year-old woman, gravida 2, para 1, at 14 weeks' gestation, comes to the physician with a 3-day history of abnormal vaginal discharge. She has not had fever, chills, or abdominal pain. One week ago, her 2-year-old daughter had a urinary tract infection that quickly resolved after antibiotic therapy. The patient reports that she is sexually active with one male partner and they do not use condoms. Vital signs are within normal limits. Pelvic examination shows an inflamed and friable cervix. There is mucopurulent, foul-smelling discharge from the cervical os. There is no uterine or cervical motion tenderness. Vaginal pH measurement shows a pH of 3.5. Which of the following is the most appropriate initial step in management?
A. Wet mount preparation
B. Nucleic acid amplification test (Correct Answer)
C. Amine test
D. Urine analysis and culture
E. Potassium hydroxide preparation
Explanation: ***Nucleic acid amplification test***
- The patient's symptoms of **inflamed, friable cervix** and **mucopurulent discharge**, along with a normal vaginal pH (3.5), are highly suggestive of **cervicitis**, commonly caused by *Chlamydia trachomatis* or *Neisseria gonorrhoeae*.
- **NAATs** are the most sensitive and specific tests for detecting these organisms, which is crucial for prompt diagnosis and treatment, especially in pregnancy, to prevent adverse outcomes.
*Wet mount preparation*
- A **wet mount** would be useful for identifying *Trichomonas vaginalis* or *Candida* species and diagnosing **bacterial vaginosis**, but the patient's normal vaginal pH makes these diagnoses less likely.
- While it can help rule out other common causes of vaginal discharge, it is **not sensitive enough** to reliably detect *Chlamydia* or *Gonorrhea*.
*Amine test*
- The **amine test** (or whiff test) is used to detect the release of amines in the presence of **bacterial vaginosis**, typically indicated by a **vaginal pH >4.5**.
- The patient's vaginal pH of 3.5 makes **bacterial vaginosis highly unlikely**, so an amine test would not be beneficial in this scenario.
*Urine analysis and culture*
- While the patient's daughter recently had a **urinary tract infection (UTI)**, the patient's symptoms are localized to the cervix (cervicitis) with **no fever, chills, or abdominal pain** indicative of a UTI.
- A urine analysis and culture would be appropriate if bladder symptoms were present, but it **will not diagnose cervicitis** or the specific sexually transmitted infections causing it.
*Potassium hydroxide preparation*
- A **KOH preparation** is primarily used to identify **fungal elements (hyphae and spores)**, indicating a *Candida* infection, which typically presents with thick, white, "cottage cheese" discharge and itching.
- This test is **not useful for diagnosing cervicitis** or bacterial causes of vaginal discharge, and the patient's symptoms are not consistent with candidiasis.
Question 16: A 20-year-old woman comes to the physician for contraceptive counseling. She has recently become sexually active with her boyfriend and expresses concerns because approximately 10 days ago the condom broke during intercourse. Her medical history is significant for deep vein thrombosis and pulmonary embolism. Urine pregnancy test is negative. After discussing different contraceptive options, the patient says, “I'd like to try the most effective method that works without hormones and would allow me to become pregnant at a later time.” The contraceptive method that best meets the patient's wishes has which of the following mechanisms?
A. Avoiding sex during fertile period
B. Preventing ovulation
C. Thickening of cervical mucus
D. Inducing endometrial inflammation (Correct Answer)
E. Closing off the fallopian tubes
Explanation: ***Inducing endometrial inflammation***
- The patient's desire for a **non-hormonal**, **highly effective**, and **reversible** contraceptive method that avoids her history of **deep vein thrombosis (DVT) and pulmonary embolism (PE)** strongly points to the **copper intrauterine device (IUD)**.
- The primary mechanism of the copper IUD is to induce a **sterile inflammatory reaction** in the endometrium, which is toxic to sperm and ova, preventing fertilization and implantation.
*Avoiding sex during fertile period*
- This describes **fertility awareness methods**, which are generally **less effective** than the patient desires.
- These methods require careful tracking of the menstrual cycle and abstinence, making them prone to **user error**.
*Preventing ovulation*
- This is the primary mechanism of **hormonal contraceptives**, which the patient wishes to avoid due to her history of DVT/PE and preference for a **non-hormonal option**.
- Hormonal contraceptives (e.g., combined oral contraceptives, patches, rings) are contraindicated or used with caution in individuals with a history of **thromboembolism**.
*Thickening of cervical mucus*
- This is a common mechanism of **progestin-only hormonal contraceptives** (e.g., progestin-only pills, hormonal IUDs, implants), which the patient also wants to avoid.
- While hormonal IUDs have lower systemic absorption than other hormonal methods, the patient specifically asked for a **non-hormonal method**.
*Closing off the fallopian tubes*
- This describes **surgical sterilization** (e.g., tubal ligation), which is generally considered **permanent** and would not allow the patient to become pregnant at a later time, contrary to her stated wishes.
- This method is also invasive and not a reversible form of contraception.
Question 17: A 28-year-old primigravida presents to the office with complaints of heartburn while lying flat on the bed at night and mild constipation that started a couple of weeks ago. She is 10 weeks pregnant, as determined by her last menstrual period. Her first menstruation was at 13 years of age and she has always had regular 28-day cycles. Her past medical history is insignificant. She does not smoke cigarettes or drink alcohol and does not take any medications. Her father died of colon cancer at 70 years of age, while her mother has diabetes and hypertension. Her vital signs include: temperature 36.9℃ (98.4℉), blood pressure 98/52 mm Hg, pulse 113/minute, oxygen saturation 99%, and respiratory rate 12 /minute. The physical examination was unremarkable, except for a diastolic murmur heard over the apex. Which of the following is considered abnormal in this woman?
A. Decreased vascular resistance
B. Diastolic murmur (Correct Answer)
C. Tachycardia
D. Increased cardiac output
E. Low blood pressure
Explanation: ***Diastolic murmur***
- Diastolic murmurs in pregnancy are **never normal** and always require further investigation to rule out significant **cardiac pathology**, such as valvular stenosis or regurgitation.
- While physiological changes in pregnancy can lead to systolic murmurs, **diastolic murmurs** are considered pathological.
*Decreased vascular resistance*
- **Peripheral vasodilation** due to hormonal changes (**progesterone**) is a normal physiological adaptation in early pregnancy, leading to decreased systemic vascular resistance.
- This decrease helps accommodate the **increased blood volume** and cardiac output, contributing to a slight drop in blood pressure.
*Tachycardia*
- An **increased heart rate** is a normal physiological response in pregnancy, typically seen as early as the first trimester.
- This compensatory mechanism helps maintain **cardiac output** in the face of decreased systemic vascular resistance and increased blood volume.
*Increased cardiac output*
- **Cardiac output increases** significantly during pregnancy, primarily due to increases in both heart rate and stroke volume, to meet the metabolic demands of the mother and fetus.
- This increase begins in the **first trimester** and peaks in the second trimester, remaining elevated until delivery.
*Low blood pressure*
- A **mild decrease in blood pressure**, particularly the diastolic pressure, is common in early pregnancy due to generalized vasodilation.
- The given blood pressure (98/52 mm Hg) is within the expected physiological range for a healthy pregnant woman in her first trimester.
Question 18: A 52-year-old female presents with a primary complaint of amenorrhea for the past 6 months. She also reports dyspareunia, recurrent headache, and infrequent episodes of night sweats. Diagnostic work-up reveals increased serum FSH levels. Which additional laboratory findings would most likely be seen in this patient?
A. Increased serum progesterone and increased serum LH
B. Decreased serum estradiol and increased serum progesterone
C. Decreased serum estradiol and increased serum LH (Correct Answer)
D. Increased serum estradiol and decreased serum LH
E. Decreased serum progesterone and increased serum testosterone
Explanation: ***Decreased serum estradiol and increased serum LH***
- **Amenorrhea**, **dyspareunia**, **headaches**, and **night sweats** in a 52-year-old female, along with **increased serum FSH**, are classic signs of **menopause**.
- During menopause, the ovaries decrease **estrogen** (estradiol) production; this lack of negative feedback to the pituitary causes a compensatory **increase in LH** and FSH.
*Increased serum progesterone and increased serum LH*
- **Increased progesterone** is typically seen after ovulation or during pregnancy, neither of which is consistent with the patient's symptoms of amenities and menopausal signs.
- While **LH is increased in menopause**, the elevation of progesterone would indicate active ovarian function, contrasting with the overall clinical picture.
*Decreased serum estradiol and increased serum progesterone*
- While **decreased estradiol** is appropriate for menopause, **increased progesterone** would be contradictory.
- **Progesterone levels** generally fall during menopause due to the cessation of ovulation.
*Increased serum estradiol and decreased serum LH*
- **Increased serum estradiol** would contradict the symptoms of menopause, as it would imply continued ovarian function.
- **Decreased LH** would also be inconsistent with ovarian failure, as LH levels rise to stimulate non-responsive ovaries.
*Decreased serum progesterone and increased serum testosterone*
- While **decreased serum progesterone** is expected in menopause, **increased testosterone** is not a primary diagnostic marker for menopause.
- Although testosterone levels can fluctuate, a significant increase is not a typical and consistent finding.
Question 19: A 31-year-old female presents to her primary care physician with mild anxiety and complaints of mood swings lasting several months. The patient reports that the mood swings affect her work and personal relationships. In addition, she complains of increased irritability, breast tenderness, bloating, fatigue, binge-eating, and difficulty concentrating for 10 days prior to her menstrual period. The patient's symptoms increase in severity with the approach of menses but resolve rapidly on the first day of menses. She states that she is very sensitive to criticism of her work by others. She also snaps at her children and her husband. She has tried yoga to unwind, but with limited improvement. She is concerned that her behavior is affecting her marriage. The patient has no past medical history, and has regular periods every 24 days. She has had two normal vaginal deliveries. She uses condoms for contraception. Her mother has major depressive disorder. The physical exam is unremarkable. What is the most appropriate next step in the treatment of this patient?
A. Nonserotonergic antidepressants
B. Selective serotonin reuptake inhibitors (SSRIs) (Correct Answer)
C. Oral contraceptive and nonsteroidal anti-inflammatory drugs (NSAIDs)
D. Gonadotropin-releasing hormone (GnRH) agonists
E. Anxiolytic therapy
Explanation: ***Selective serotonin reuptake inhibitors (SSRIs)***
- This patient presents with symptoms highly suggestive of **Premenstrual Dysphoric Disorder (PMDD)**, including mood swings, irritability, physical symptoms (bloating, breast tenderness), and functional impairment, all occurring cyclically in the **luteal phase** and resolving with menses.
- **SSRIs** are considered first-line pharmacological treatment for PMDD due to their efficacy in reducing both psychological and physical symptoms. They can be prescribed continuously or intermittently (only during the luteal phase).
*Nonserotonergic antidepressants*
- While some antidepressants can be used for mood disorders, **nonserotonergic agents** (e.g., bupropion) are generally not considered first-line for PMDD.
- The efficacy of these agents specifically for the range of PMDD symptoms, particularly cyclical ones, is less well established compared to SSRIs.
*Oral contraceptive and nonsteroidal anti-inflammatory drugs (NSAIDs)*
- **Oral contraceptives** can sometimes alleviate PMDD symptoms in some women by suppressing ovulation and stabilizing hormonal fluctuations, but they are not the primary pharmacological treatment for the mood and anxiety symptoms of PMDD.
- **NSAIDs** are effective for physical symptoms like cramps or headaches, but they do not address the primary mood and psychiatric symptoms of PMDD.
*Gonadotropin-releasing hormone (GnRH) agonists*
- **GnRH agonists** induce a temporary pharmacological menopause, effectively stopping ovarian hormone production, which can alleviate severe PMDD symptoms.
- However, due to significant side effects (hot flashes, bone loss) and their more aggressive nature, they are typically reserved for **severe cases of PMDD refractory to first-line treatments**, not as an initial step.
*Anxiolytic therapy*
- **Anxiolytics** (e.g., benzodiazepines) can help manage **anxiety symptoms** but do not address the full spectrum of PMDD, including mood swings, irritability, and physical symptoms.
- They also carry risks of dependence and are generally reserved for short-term use or as adjuncts in specific situations, not as a primary treatment for PMDD.
Question 20: A 23-year-old G1P0 female presents to her OB/GYN for her routine 36-week visit. Her current complaints include increased fatigue at the end of the day, and edema in her ankles. The patient’s physical examination is unremarkable except for inguinal adenopathy. Upon pelvic examination for cervical changes, the OB/GYN notices a vaginal chancre. The patient states that it is not painful when touched. Which of the following is the most likely diagnosis?
A. Secondary syphilis
B. Cardiovascular syphilis
C. Primary syphilis (Correct Answer)
D. Gummatous syphilis
E. Neurosyphilis
Explanation: ***Primary syphilis***
- A **painless chancre** is the hallmark lesion of primary syphilis, which develops at the site of initial inoculation.
- While fatigue and edema are common in pregnancy, the presence of a **painless vaginal chancre** and **inguinal adenopathy** is highly indicative of primary syphilis.
*Secondary syphilis*
- This stage is characterized by a **disseminated skin rash** (often involving palms and soles), **condyloma lata**, and generalized lymphadenopathy, not a solitary chancre.
- Symptoms usually appear several weeks or months after the chancre of primary syphilis has healed.
*Cardiovascular syphilis*
- This is a form of **tertiary syphilis** that affects the heart and great vessels, typically resulting in **aortitis**, aneurysms, or aortic regurgitation.
- It develops years to decades after the initial infection and would not present with a chancre.
*Gummatous syphilis*
- This is another manifestation of **tertiary syphilis**, characterized by the formation of **gummas**—soft, non-cancerous granulomas that can affect any organ.
- Like cardiovascular syphilis, it occurs many years after initial infection and does not involve a primary chancre.
*Neurosyphilis*
- This involves the **central nervous system** and can occur at any stage of syphilis, but is usually a late complication.
- Symptoms vary widely but include **meningitis**, strokes, or psychiatric manifestations, none of which are consistent with a chancre or the acute presentation described.