Erectile Dysfunction: Definition, Causes, and Treatment

Question 1

The primary neurotransmitter responsible for penile erection is:

Accepted Answer

Acetylcholine

Answer

Dopamine

Answer

Epinephrine

Answer

Norepinephrine

Question 2

Which of the following is a surgical option for the treatment of erectile dysfunction?

Accepted Answer

Penile prosthesis

Answer

Endarterectomy

Answer

Nerve grafting

Answer

Vasodilator therapy

Question 3

Which of the following statements about erectile dysfunction is true?

Accepted Answer

It can be effectively managed in most cases.

Answer

It is more common in younger men than older men.

Answer

It is always a sign of an underlying medical condition.

Answer

It is a rare condition.

Question 4

Which of the following is a less significant risk factor for erectile dysfunction?

Accepted Answer

Regular exercise

Answer

Age

Answer

Smoking

Answer

Obesity

Question 5

Which of the following is a common symptom of erectile dysfunction?

Accepted Answer

Inability to maintain an erection

Answer

Premature ejaculation

Answer

Painful ejaculation

Question 6

Which of the following most accurately defines erectile dysfunction?

Accepted Answer

The persistent inability to achieve and maintain an erection sufficient for satisfactory sexual intercourse.

Answer

The complete absence of erectile function.

Answer

A condition characterized by recurrent painful erections.

Question 7

In treating erectile dysfunction, which option is typically recommended first?

Accepted Answer

Medications that inhibit phosphodiesterase type-5

Answer

Testosterone replacement therapy

Answer

Using a vacuum erection device

Answer

Surgical intervention

Question 8

In the ethical management of erectile dysfunction, which principle should be prioritized?

Accepted Answer

Respect for patient autonomy

Answer

Cost-effectiveness of treatment options

Answer

Physician's judgment and expertise

Question 9

Which of the following is **not** a well-established risk factor for erectile dysfunction (ED)?

Accepted Answer

Prolonged use of antidepressants

Answer

Diabetes mellitus

Answer

Cardiovascular disease

Answer

Hypertension

Question 10

In patients with diabetes, the primary mechanism responsible for ED is:

Accepted Answer

Neuropathy

Answer

Vasoconstriction

Answer

Venous leakage

Answer

Peyronie's disease

Question 11

Which of the following medications is a first-line treatment for ED and belongs to the class of phosphodiesterase type 5 inhibitors?

Accepted Answer

Sildenafil (Viagra)

Answer

Terazosin (Hytrin)

Answer

Propranolol (Inderal)

Answer

Tamsulosin (Flomax)

Question 12

Which of the following surgical procedures is used as a last resort to treat severe cases of ED that are unresponsive to other treatments?

Accepted Answer

Penile prosthesis implantation

Answer

Urethral dilation

Answer

Circumcision

Answer

Vasovasostomy

Question 13

Which hormone plays a significant role in libido and erectile function?

Accepted Answer

Testosterone

Answer

Estradiol

Answer

Adrenocorticotropic hormone (ACTH)

Answer

Prolactin

Question 14

Which of the following is the most common **psychological** cause of non-organic ED?

Accepted Answer

Anxiety

Answer

Depression

Answer

Substance abuse

Answer

Relationship problems

Question 15

Identify the most prevalent underlying cause leading to organic erectile dysfunction.

Accepted Answer

Endothelial dysfunction

Answer

Psychological factors

Answer

Venous leakage

Answer

Neurological disorders

Question 16

In cases of organic erectile dysfunction, which treatment option is typically recommended as the first-line approach?

Accepted Answer

Phosphodiesterase type 5 inhibitors

Answer

Intracavernosal injection therapy

Answer

Vacuum erection devices

Answer

Surgical intervention

Question 17

For the evaluation of organic causes underlying erectile dysfunction, which diagnostic test is generally considered to be the most appropriate?

Accepted Answer

Penile Doppler ultrasound

Answer

Nocturnal penile tumescence monitoring

Answer

Prostate-specific antigen testing

Answer

Magnetic resonance imaging of the pelvis

Question 18

Which of the following is the most prevalent organic etiology of erectile dysfunction?

Accepted Answer

Diabetes

Answer

Peyronie's disease

Answer

Prostate cancer

Answer

Stress

Question 19

Which of the following is the most common organic cause of erectile dysfunction?

Accepted Answer

Diabetes

Answer

Peyronie's disease

Answer

Prostate cancer

Answer

Aging

Question 20

The primary neurotransmitter responsible for penile erection is:

Accepted Answer

Nitric oxide

Answer

Serotonin

Answer

Acetylcholine

Answer

Dopamine

Question 21

Which of the following is a typical clinical presentation of ED?

Accepted Answer

Persistent difficulty achieving and maintaining erections

Answer

Testicular pain

Answer

Frequent urination

Answer

Pelvic pain

Question 22

The recommended initial diagnostic step for ED is:

Accepted Answer

Medical history and physical examination

Answer

Ultrasound

Answer

Blood test

Answer

Biopsy

Question 23

Which of the following medications is commonly used as a first-line treatment for ED?

Accepted Answer

Phosphodiesterase-5 inhibitors (e.g., sildenafil, tadalafil, vardenafil)

Answer

Testosterone replacement therapy

Answer

Antidepressants

Answer

Antihypertensive medications

Question 24

Which of the following lifestyle modifications is recommended for the prevention and management of ED?

Accepted Answer

Engaging in regular physical activity

Answer

Excessive alcohol consumption

Answer

Poor sleep habits

Answer

Smoking

Question 25

Which of the following psychological factors can contribute to ED?

Accepted Answer

Performance anxiety

Answer

Peyronie's disease

Answer

Heart disease

Question 26

Which of the following is NOT a diagnostic criterion for ED?

Accepted Answer

Inability to ejaculate

Answer

Difficulty achieving an erection sufficient for intercourse

Answer

Loss of morning erections

Answer

Difficulty maintaining an erection until completion of intercourse

Question 27

Which of the following is the most prevalent underlying cause of erectile dysfunction in men aged over 50?

Accepted Answer

Endothelial dysfunction

Answer

Prostate cancer treatment

Answer

Peyronie's disease

Answer

Priapism

Question 28

Which of the following commonly prescribed medications can cause erectile dysfunction as an adverse reaction?

Accepted Answer

Beta-blockers

Answer

Ibuprofen

Answer

Aspirin

Question 29

Which pharmacological class is typically employed as the initial therapeutic approach for erectile dysfunction?

Accepted Answer

PDE5 inhibitors

Answer

Penile implants

Answer

Vacuum erection devices

Answer

Testosterone replacement therapy

Question 30

Which of the following is a contraindication to the use of PDE5 inhibitors for erectile dysfunction?

Accepted Answer

Recent myocardial infarction

Answer

Smoking

Answer

Hypertension

Answer

Diabetes

Question 31

Which of the following is the primary underlying pathophysiological mechanism in psychogenic erectile dysfunction?

Accepted Answer

Impaired release of nitric oxide

Answer

Venous leakage

Answer

Arterial insufficiency

Question 32

Which of the following clinical presentations is characteristic of priapism?

Accepted Answer

Painful, persistent erection lasting more than 4 hours

Answer

Premature ejaculation

Answer

Inability to achieve an erection

Question 33

What is the first-line treatment for priapism?

Accepted Answer

Aspiration and irrigation of the corpora cavernosa

Answer

Hormone replacement therapy

Answer

Oral antibiotics

Question 34

Which of the following is a potential psychological consequence of erectile dysfunction?

Accepted Answer

Psychological distress

Answer

Myocardial infarction

Answer

Stroke

Answer

Renal failure

Question 35

Which of the following is NOT a known risk factor for erectile dysfunction (ED)?

Accepted Answer

Youthful age

Answer

Hypertension

Answer

Smoking

Answer

Diabetes

Question 36

Which pathophysiological mechanism is considered the primary cause of ED?

Accepted Answer

Defective relaxation of penile arteries and impaired blood flow

Answer

Purely psychological factors

Answer

Excessive venous leakage

Answer

Neurological damage

Question 37

Which of the following is a characteristic clinical manifestation of ED?

Accepted Answer

Persistent inability to achieve or maintain an erection adequate for satisfactory sexual performance

Answer

Painful intercourse

Answer

Premature ejaculation

Question 38

Which diagnostic test is regarded as the most reliable and objective method for assessing erectile function?

Accepted Answer

Nocturnal penile tumescence and rigidity monitoring

Answer

Magnetic resonance angiography

Answer

Penile Doppler ultrasonography

Question 39

Which of the following conditions is a contraindication to the use of phosphodiesterase type 5 inhibitors (PDE5Is), commonly prescribed for ED?

Accepted Answer

Concomitant use of nitrates

Answer

Smoking

Answer

Hypertension

Answer

Diabetes

Question 40

Which surgical intervention is an option for men with severe ED who do not respond to other treatment modalities?

Accepted Answer

Penile implant surgery

Answer

Nerve grafting

Answer

Arterial bypass surgery

Answer

Transurethral resection of the prostate

Question 41

What is the most prevalent psychological factor contributing to psychogenic ED?

Accepted Answer

Performance anxiety

Answer

Depression

Answer

Relationship difficulties

Answer

Past traumatic experiences

Question 42

Which of the following is the most common cause of organic erectile dysfunction in men over 50 years old?

Accepted Answer

Vascular disease

Answer

Peyronie's disease

Answer

Diabetes

Answer

Neurological disease

Question 43

Which of the following is a symptom of erectile dysfunction?

Accepted Answer

Difficulty getting or keeping an erection

Answer

Frequent urination

Answer

Painful ejaculation

Answer

Premature ejaculation

Question 44

Which of the following is a diagnostic test for erectile dysfunction?

Accepted Answer

Nocturnal penile tumescence and rigidity (NPTR) testing

Answer

Prostate-specific antigen (PSA) test

Answer

Cystoscopy

Question 45

Which of the following is a first-line treatment for erectile dysfunction?

Accepted Answer

Phosphodiesterase type 5 (PDE5) inhibitors

Answer

Vacuum erection devices

Answer

Testosterone replacement therapy

Answer

Surgery

Question 46

Which of the following is a contraindication to the use of PDE5 inhibitors?

Accepted Answer

Use of nitrates

Answer

Use of alpha-blockers

Answer

Use of statins

Answer

Use of antidepressants

Question 47

Which of the following is a potential side effect of PDE5 inhibitors?

Accepted Answer

Headache

Answer

Nausea

Answer

Priapism

Answer

Hypotension

Question 48

Which of the following is a type of intracavernosal injection therapy for erectile dysfunction?

Accepted Answer

Alprostadil

Answer

Lidocaine

Answer

Botox

Question 49

Which of the following is a surgical treatment for erectile dysfunction?

Accepted Answer

Penile prosthesis implantation

Answer

Laser therapy

Answer

Testicular biopsy

Answer

Vasectomy

Question 50

Which of the following is a lifestyle modification that can improve erectile function?

Accepted Answer

Exercise

Answer

Smoking

Answer

Drinking alcohol

Question 51

Which of the following is a psychosocial factor that can contribute to erectile dysfunction?

Accepted Answer

Stress

Answer

Age

Answer

Diabetes