Which type of pain is primarily associated with psychological factors and lacks a clear physical cause?
Q12
The most common postoperative psychiatric condition is:
Q13
Neuropsychiatric complications of HIV include all except which of the following?
Q14
What is the most common postoperative psychiatric complication?
Consultation-Liaison Psychiatry Indian Medical PG Practice Questions and MCQs
Question 11: Which type of pain is primarily associated with psychological factors and lacks a clear physical cause?
A. Pain caused by nerve damage
B. Pain resulting from physical injury
C. Pain from internal organs
D. Pain with no identifiable physical cause (Correct Answer)
Explanation: ***Pain with no identifiable physical cause***
- This describes **psychogenic pain** (also termed **somatic symptom disorder** in modern classification), where psychological factors like stress, anxiety, or depression significantly contribute to the experience of pain without a clear **physical pathology**.
- The pain is real to the individual, even if a physical origin cannot be found, highlighting the strong **mind-body connection**.
- Common in **conversion disorder**, **somatization disorder**, and **persistent somatoform pain disorder** (ICD-10).
*Pain caused by nerve damage*
- This is **neuropathic pain**, a type of chronic pain resulting from damage to the **somatosensory nervous system**.
- It has a clear physical cause, such as **diabetic neuropathy**, **post-herpetic neuralgia**, or a **herniated disc**.
*Pain resulting from physical injury*
- This is **nociceptive pain**, which arises from actual or threatened damage to **non-neural tissue** and is due to the activation of **nociceptors**.
- Examples include sprains, fractures, burns, or post-surgical pain, all of which have a clear **physical etiology**.
*Pain from internal organs*
- This is **visceral pain**, which originates from internal organs and is often described as diffuse, deep, and poorly localized.
- It has a clear anatomical source, such as **appendicitis**, **gallstones**, **myocardial infarction**, or **ureteral colic**.
Question 12: The most common postoperative psychiatric condition is:
A. Schizophrenia
B. Delirium (Correct Answer)
C. Chronic brain syndrome
D. Depression
Explanation: ***Delirium***
- **Delirium** is the most common postoperative psychiatric condition, characterized by an acute onset of **waxing and waning attention**, **disorganized thinking**, and altered level of consciousness.
- It is often seen in elderly patients and those with pre-existing cognitive impairment, due to the stress of surgery, anesthesia, and medication effects.
*Schizophrenia*
- **Schizophrenia** is a chronic psychotic disorder with onset typically in late adolescence or early adulthood, characterized by hallucinations, delusions, and disorganized thinking.
- It is not typically triggered by surgery but rather a long-term psychiatric illness with a different etiology.
*Chronic brain syndrome*
- **Chronic brain syndrome** is an outdated term typically used to describe **dementia** or other persistent cognitive impairments.
- While patients with chronic cognitive impairment are at higher risk for postoperative delirium, chronic brain syndrome itself is not an acute postoperative psychiatric condition.
*Depression*
- **Depression** is a common mood disorder characterized by persistent sadness, loss of interest, and other symptoms.
- While depression can occur postoperatively, especially in patients with prolonged recovery or poor outcomes, it is typically not the most common acute psychiatric condition immediately following surgery.
Question 13: Neuropsychiatric complications of HIV include all except which of the following?
A. HIV-associated dementia
B. Depression
C. Psychosis
D. Bipolar disorder (Correct Answer)
Explanation: ***Bipolar disorder***
- While individuals with HIV may experience mood disorders, **bipolar disorder** is not considered a direct neuropsychiatric complication of the HIV virus itself.
- The prevalence of bipolar disorder in HIV-positive individuals is similar to the general population, suggesting it's not causally linked to HIV neuropathogenesis.
*HIV-associated dementia*
- **HIV-associated dementia** (HAD) is a common and severe neuropsychiatric complication directly caused by chronic HIV infection in the central nervous system.
- It manifests as progressive cognitive decline, motor dysfunction, and behavioral changes.
*Depression*
- **Depression** is a prevalent neuropsychiatric complication in HIV-positive individuals, often due to a combination of physiological effects of the virus, psychosocial stressors, and medication side effects.
- It significantly impacts quality of life and adherence to antiretroviral therapy.
*Psychosis*
- **Psychosis**, including symptoms like hallucinations and delusions, can occur in HIV-infected individuals, particularly in advanced stages or when complicated by opportunistic infections or medication effects on the brain.
- This can be a direct result of HIV's impact on neural pathways or a consequence of secondary CNS issues.
Question 14: What is the most common postoperative psychiatric complication?
A. Delirium (Correct Answer)
B. Depression
C. Psychosis
D. Anxiety
Explanation: ***Delirium***
- **Delirium** is the most frequent postoperative psychiatric complication, especially in elderly patients and those undergoing major surgery.
- It is an acute **neuropsychiatric syndrome** characterized by fluctuating attention, disorganized thinking, and altered level of consciousness.
- Incidence ranges from **15-50% in elderly surgical patients** and **up to 80% in ICU settings**.
*Depression*
- Postoperative depression is common but typically emerges days to weeks after surgery, unlike the acute onset of **delirium**.
- While it can significantly affect recovery, its incidence directly after surgery is lower than that of **delirium**.
*Psychosis*
- Postoperative psychosis is relatively rare and often linked to pre-existing psychiatric conditions, substance withdrawal, or severe medical complications.
- It involves more severe thought disturbances and hallucinations than the more common **delirium**.
*Anxiety*
- Postoperative anxiety is common and can affect recovery, but it is typically **less severe** than delirium.
- Unlike delirium, anxiety does not involve altered consciousness or acute cognitive impairment requiring immediate psychiatric intervention.
