Mental Status Examination — MCQs
Neurological status is assessed under which step of ABCDE of trauma care?
A patient tells psychiatrist: "My brain is missing. What is the point of me eating anything. I am already dead". The patient has which type of delusion?
A 30-year-old female with depressed mood, decreased appetite, and no interest for one year. What is the diagnosis?
Visual hallucinations are most commonly seen in:
Patient was in an accident and put on mechanical ventilation. He is opening his eyes on verbal command and follows motor commands with all four limbs. What is his GCS score?
What is the total score in the Mini Mental Status Examination (MMSE)?
What is the most likely diagnosis for a patient presenting with sudden onset headache and neck rigidity?
Patient: fever, joint pain, rash. Recent history of mosquito bite. Most likely diagnosis in urban area?
All are associated with Wernicke's encephalopathy, except:
An adult hypertensive male presented with sudden onset severe headache and vomiting. On examination, there is marked neck rigidity and no focal neurological deficit was found. The symptoms are most likely due to:
Mental Status Examination Indian Medical PG Practice Questions and MCQs
Question 1: Neurological status is assessed under which step of ABCDE of trauma care?
- A. C - Circulation with haemorrhage control
- B. E - Exposure: completely undress the patient and assess for other injuries
- C. B - Breathing and ventilation
- D. D - Disability: neurological status (Correct Answer)
Explanation: ***D - Disability: neurological status*** - The "D" in ABCDE trauma assessment specifically stands for **Disability**, which involves a rapid assessment of the patient's **neurological status**. - This step typically includes evaluating **level of consciousness** using tools like the AVPU scale (Alert, Voice, Pain, Unresponsive) or the Glasgow Coma Scale (GCS), assessing pupillary response, and identifying any gross motor deficits. *C - Circulation with haemorrhage control* - This step focuses on assessing and managing **blood flow**, including evaluating heart rate, blood pressure, capillary refill, and controlling any sources of external hemorrhage. - While neurological issues can result from poor circulation, the primary assessment of the nervous system itself is not performed here. *E - Exposure: completely undress the patient and assess for other injuries* - This final step involves a thorough **inspection of the entire body** to identify hidden injuries, such as bruising, lacerations, or deformities, while simultaneously ensuring temperature regulation. - It is for overall physical assessment, not for initial neurological evaluation. *B - Breathing and ventilation* - This step involves assessing the patient's **respiratory effort**, checking for symmetrical chest rise, listening to breath sounds, and intervening to ensure adequate oxygenation and ventilation. - While critical for brain function, this step focuses on the respiratory system, not the direct assessment of neurological function.
Question 2: A patient tells psychiatrist: "My brain is missing. What is the point of me eating anything. I am already dead". The patient has which type of delusion?
- A. Nihilistic delusion (Correct Answer)
- B. Delusion of misidentification
- C. Bizarre Delusion
- D. Hypochondriacal Delusion
Explanation: ***Nihilistic delusion*** - The patient's statements ("**My brain is missing**," "**I am already dead**," "What is the point of me eating anything") are characteristic of **nihilistic delusions**, specifically Cotard's syndrome. - This type of delusion involves a belief in the non-existence of oneself, parts of one's body, or the entire world. *Delusion of misidentification* - This involves a belief that familiar people or objects have been replaced by imposters, or that someone is a different person entirely. - The patient's statements do not describe the misidentification of another person or object. *Bizarre Delusion* - While the statements could be considered bizarre, **bizarre delusions** are defined as clearly implausible, not understandable, and not derived from ordinary life experiences (e.g., aliens implanted a chip in my brain). - Nihilistic delusions, especially in the context of Cotard's syndrome, are a specific subtype of delusion that can be bizarre, but "nihilistic delusion" is a more precise characterization here. *Hypochondriacal Delusion* - This involves a false belief of having a severe disease despite medical reassurance. - While there is a physical component to the delusion ("my brain is missing"), the overarching theme of non-existence and being dead goes beyond a simple preoccupation with illness.
Question 3: A 30-year-old female with depressed mood, decreased appetite, and no interest for one year. What is the diagnosis?
- A. None of the options
- B. Dysthymia
- C. Anxiety
- D. Major Depressive Disorder (Correct Answer)
Explanation: ***Major Depressive Disorder*** - The patient presents with classic symptoms of **depressed mood**, **decreased appetite**, and **anhedonia** (no interest) which are core criteria for **Major Depressive Disorder**. - The duration of one year indicates a chronic and significant impact on daily functioning, consistent with a major depressive episode. *Dysthymia* - While dysthymia also involves chronic depressed mood, it typically presents with **less severe** symptoms than major depressive disorder. - The patient's symptoms of significant anhedonia and appetite changes are more indicative of the severity seen in a major depressive episode. *Anxiety* - Anxiety disorders are characterized primarily by **excessive worry, fear, or apprehension**, often accompanied by physical symptoms like palpitations or shortness of breath. - Although anxiety can co-occur with depression, the primary symptoms described (depressed mood, anhedonia, appetite changes) are classic for a depressive diagnosis. *None of the options* - The patient's symptoms clearly align with **Major Depressive Disorder**, meeting the diagnostic criteria based on severity and duration. - There is a suitable diagnosis among the given options; therefore, this option is incorrect.
Question 4: Visual hallucinations are most commonly seen in:
- A. OCD
- B. Delusional syndrome
- C. Delirium (Correct Answer)
- D. Mania
Explanation: ***Delirium*** - **Visual hallucinations** are a hallmark symptom of **delirium**, often described as vivid and fluctuating. - Delirium presents with acute onset of **waxing and waning consciousness**, attention deficits, and cognitive impairment. *OCD* - **Obsessive-compulsive disorder** (OCD) is characterized by recurrent, intrusive thoughts (**obsessions**) and repetitive behaviors (**compulsions**). - It does not typically involve hallucinations; rather, individuals are usually aware of the irrationality of their obsessions and compulsions. *Delusional syndrome* - **Delusional disorders** primarily involve fixed, false beliefs (**delusions**) that are not bizarre and are not accompanied by prominent hallucinations. - While hallucinations can occur, they are generally not the most prominent or characteristic feature, unlike in delirium or psychotic disorders. *Mania* - **Mania**, a mood disorder, is characterized by an elevated, expansive, or irritable mood, increased activity, racing thoughts, and decreased need for sleep. - While psychotic features such as delusions (often grandiose) can occur in severe mania, **visual hallucinations** are less common than in delirium and audio hallucinations are more likely if present.
Question 5: Patient was in an accident and put on mechanical ventilation. He is opening his eyes on verbal command and follows motor commands with all four limbs. What is his GCS score?
- A. 12
- B. 11
- C. 9
- D. 10 (Correct Answer)
Explanation: ***10*** - **Eye-opening on verbal command scores 3 points** on the GCS (E3). - **Following motor commands with all four limbs scores 6 points** on the GCS (M6). - The patient is on **mechanical ventilation, meaning verbal response is untestable** and scores **1 point (V1T)** for intubated patients. - **Total GCS score: E3 + V1T + M6 = 10T** *12* - This score would incorrectly assume a verbal response of 5 (oriented), which is impossible for an intubated patient. - Would require: E3 + V5 + M4 or similar incorrect combinations that don't match the clinical presentation. *11* - This score would result from incorrect component assignment. - For example, E3 + V2 + M6 = 11, but verbal response cannot be 2 in an intubated patient (must be 1T). - Does not align with the untestable verbal response due to mechanical ventilation. *9* - This score underestimates the patient's neurological status. - Would require: E2 + V1 + M6 = 9, which contradicts the finding that the patient opens eyes on verbal command (E3, not E2). - Incorrectly assigns lower eye-opening score than the clinical presentation indicates.
Question 6: What is the total score in the Mini Mental Status Examination (MMSE)?
- A. 25
- B. 32
- C. 30 (Correct Answer)
- D. 35
Explanation: ***Correct: 30*** - The **Mini Mental State Examination (MMSE)** is a 30-point questionnaire used to screen for **cognitive impairment** and monitor changes in cognitive function over time. - The score is calculated by summing points for correct responses across various cognitive domains such as **orientation**, **attention**, **memory**, **language**, and **visuospatial skills**. - This is the **maximum total score** achievable on the MMSE. *Incorrect: 25* - A score of 25 in the MMSE is significantly below the maximum, and depending on age and education, it often suggests **mild cognitive impairment** or early **dementia**. - While 25 is a possible score a patient can achieve, it is not the **maximum total score** for the examination itself. *Incorrect: 32* - The MMSE is standardized to have a maximum score of **30**, so 32 is higher than the possible range for this particular cognitive assessment tool. - No domain in the MMSE allows for a score that would lead to a total of 32 points. *Incorrect: 35* - Like 32, a score of 35 is beyond the **maximum achievable score** on the MMSE. - This indicates a misunderstanding of the MMSE's scoring rubric, as the highest possible score is **30 points**.
Question 7: What is the most likely diagnosis for a patient presenting with sudden onset headache and neck rigidity?
- A. Intraparenchymal hemorrhage
- B. Meningitis
- C. Subarachnoid Hemorrhage (Correct Answer)
- D. None of the options
Explanation: ***Subarachnoid Hemorrhage*** - A **sudden onset headache**, often described as the **"worst headache of my life,"** [1] combined with **neck rigidity (nuchal rigidity)**, [1] is highly characteristic of a subarachnoid hemorrhage. - This condition results from bleeding into the **subarachnoid space**, typically due to a ruptured aneurysm, [2] leading to meningeal irritation. *Intraparenchymal hemorrhage* - While an intraparenchymal hemorrhage can cause a sudden headache, **neck rigidity** is less common unless the hemorrhage is very large or extends into the ventricular system, irritating the meninges. - Neurological deficits are often more prominent and specific to the affected brain region, such as **hemiparesis** or **aphasia**. *Meningitis* - Meningitis also presents with **headache** and **neck rigidity**, [1] but the onset is usually more gradual, developing over hours to days, unlike the abrupt onset seen in this case. - Additionally, fever, photophobia, and altered mental status are common accompanying symptoms in meningitis. *None of the options* - This option is incorrect because **subarachnoid hemorrhage** is a strong and plausible diagnosis given the presented symptoms.
Question 8: Patient: fever, joint pain, rash. Recent history of mosquito bite. Most likely diagnosis in urban area?
- A. Dengue
- B. Japanese Encephalitis
- C. Malaria
- D. Chikungunya (Correct Answer)
Explanation: ***Chikungunya*** - **Chikungunya** is a viral disease transmitted by mosquitoes that commonly presents with **fever**, severe **joint pain** (polyarthralgia), and a **rash**, fitting the patient's symptoms. - Its high prevalence in **urban areas** and recent history of **mosquito bites** make it a strong diagnostic consideration. *Dengue* - While Dengue also causes **fever** [1] and a **rash**, it is more typically associated with **severe muscle and bone pain** ("breakbone fever"), and **hemorrhagic manifestations** or shock, which are not mentioned. - **Joint pain** in dengue is usually less debilitating than in chikungunya. *Japanese Encephalitis* - This is a serious **neurological infection** characterized by **fever**, **headache**, seizures, and altered mental status, rather than prominent joint pain and rash. - It primarily affects the **brain** and is less likely to present with this specific symptom triad. *Malaria* - Malaria is characterized by **cyclic fevers**, chills, sweating, and fatigue, but typically **does not present with a rash** [1] or significant joint pain. - It is caused by a **parasite** transmitted by *Anopheles* mosquitoes, and its clinical picture differs from the described symptoms.
Question 9: All are associated with Wernicke's encephalopathy, except:
- A. Cog wheel rigidity (Correct Answer)
- B. Alteration in mental function
- C. VIth nerve palsy
- D. Ataxia
Explanation: ***Cog wheel rigidity*** - **Cogwheel rigidity** is a characteristic symptom of **Parkinson's disease**, resulting from intermittent resistance to passive limb movement [1]. - It is not a feature of **Wernicke's encephalopathy**, which primarily affects different neurological pathways. *Alteration in mental function* - **Alteration in mental function**, ranging from confusion to coma, is a core feature of **Wernicke's encephalopathy** due to thiamine deficiency impacting brain metabolism [2],[3]. - This symptom is part of the classic triad, indicating diffuse cerebral dysfunction. *VIth nerve palsy* - **VIth nerve palsy** (abducens nerve palsy) often manifests as **ophthalmoplegia**, a key component of the Wernicke's triad [2]. - This cranial nerve dysfunction leads to impaired eye movements, particularly horizontal gaze abnormalities. *Ataxia* - **Ataxia**, characterized by a wide-based gait and poor coordination, is a common finding in **Wernicke's encephalopathy** [2]. - It results from damage to the cerebellum and vestibular system due to **thiamine deficiency** [3].
Question 10: An adult hypertensive male presented with sudden onset severe headache and vomiting. On examination, there is marked neck rigidity and no focal neurological deficit was found. The symptoms are most likely due to:
- A. Subarachnoid hemorrhage (Correct Answer)
- B. Intracerebral hemorrhage
- C. Cerebral ischemia
- D. Bacterial meningitis
Explanation: ***Subarachnoid hemorrhage*** - The sudden onset of a **"thunderclap" headache**, vomiting, and **neck rigidity** in a hypertensive patient are classic signs of subarachnoid hemorrhage [1]. - The absence of focal neurological deficits is common, as the bleeding is often in the subarachnoid space rather than directly in brain tissue. *Intracerebral hemorrhage* - While it can cause sudden headache and vomiting, an **intracerebral hemorrhage** would typically present with **focal neurological deficits** corresponding to the affected brain region. - Neck rigidity is less common unless there's significant mass effect or ventricular involvement. *Cerebral ischemia* - **Cerebral ischemia** (e.g., ischemic stroke) usually manifests with **focal neurological deficits** (e.g., weakness, aphasia), often without a severe headache or neck rigidity [2]. - Headache, if present, is usually less severe and not described as "thunderclap." *Bacterial meningitis* - **Bacterial meningitis** presents with headache, fever, and neck rigidity [1], but the onset is typically **gradual** over hours to days, not sudden. - While vomiting can occur, the acute, thunderclap nature linked to hypertension points away from infection as the primary cause.
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