Pain Management Practice Questions

Q: A painful syndrome characterized by an increased reaction to a stimulus and an increased threshold, along with faulty identification and localization of the stimulus, is called as:

Hyperpathia. ### Explanation **Correct Answer: B. Hyperpathia** **Hyperpathia** is a clinical symptom of neuropathic pain characterized by an abnormally exaggerated response to a stimulus, especially a repetitive one. It is defined by three key features mentioned in the question: 1. **Increased Threshold:** The patient requires a stronger-than-normal stimulus to perceive any sensation. 2. **Increased Reaction:** Once the threshold is reached, the pain is perceived as explosive, agonizing, and out of proportion to the stimulus. 3. **Faulty Localization/Identification:** The patient often has difficulty pinpointing exactly where the stimulus is applied and may experience "summation" (pain increasing with repeated stimuli) or "after-sensations." --- ### Why the other options are incorrect: * **A. Causalgia:** Now termed **CRPS Type II**, this is a syndrome of sustained burning pain, allodynia, and hyperpathia following a **traumatic nerve injury**. While hyperpathia is a feature of causalgia, the question describes the definition of hyperpathia itself. * **C. Hyperesthesia:** This is a broad, "umbrella" term for increased sensitivity to stimulation, excluding the special senses. It includes both allodynia and hyperalgesia but does not specifically require an increased threshold or faulty localization. * **D. Phantom Pain:** This refers to painful sensations perceived in a limb or organ that has been **amputated** or is no longer physically present. --- ### NEET-PG High-Yield Pearls: * **Allodynia:** Pain due to a stimulus that does **not** normally provoke pain (e.g., light touch/clothing). * **Hyperalgesia:** An **increased response** to a stimulus that is normally painful. * **Dysesthesia:** An unpleasant, abnormal sensation, whether spontaneous or evoked. * **CRPS Type I (Reflex Sympathetic Dystrophy):** Occurs **without** a definable nerve injury. * **CRPS Type II (Causalgia):** Occurs **with** a specific nerve injury.

Q: Commonest complication of celiac plexus block is

Hypotension. ***Hypotension*** - **Hypotension** is the most common complication due to the **sympathectomy** caused by the block, leading to widespread vasodilation. - This effect is often self-limiting but may require **fluid boluses** or vasopressors. *Seizures* - Seizures are an extremely **rare complication** and are typically associated with systemic toxicity of local anesthetics, not directly with the mechanism of a celiac plexus block itself. - This would usually occur due to **intravascular injection** or excessive systemic absorption. *Bradycardia* - **Bradycardia** is less common than hypotension and is more typically associated with blocks that affect the **parasympathetic nervous system**, which is not the primary target of a celiac plexus block. - While it can occur, it is not the most frequent side effect. *Retroperitoneal hematoma* - A **retroperitoneal hematoma** is a serious complication, but it is less common than hypotension, occurring due to trauma to blood vessels during needle insertion. - The risk is higher with **anticoagulated patients** or complex needle trajectories.

Q: Stellate ganglion block is useful in :

sudeck osteodystrophy. ***sudeck osteodystrophy*** - Stellate ganglion block is a common treatment for **Sudeck's atrophy**, also known as **Complex Regional Pain Syndrome (CRPS) Type I**. - It helps by interrupting the efferent sympathetic innervation to the upper extremity, thereby decreasing **vasoconstriction** and related pain. *osteoarthritis of first CMC joint* - This condition is primarily a **degenerative joint disease** and is typically managed with conservative measures, injections, or surgery. - A stellate ganglion block does not address the underlying **arthritic process** or provide long-term relief for this condition. *tenosynovitis* - Tenosynovitis is an inflammation of the **tendon sheath**, often caused by overuse or repetitive strain. - Treatment usually involves **rest**, **nsaids**, corticosteroid injections, or in severe cases, surgical release, not sympathetic blockade. *compound palmar ganglion* - A compound palmar ganglion is a **synovial cyst** formation, often associated with chronic tenosynovitis of the flexor tendons in the palm. - Management typically involves **aspiration** with steroid injection or **surgical excision**, as it is a mechanical issue, not a sympathetically mediated pain syndrome.

Q: Following are the features of persistent postoperative pain EXCEPT:

Pain present for at least 3 months. *Pain present for at least 3 months* - This statement is an **incorrect** feature of persistent postoperative pain. The diagnostic criteria for persistent postoperative pain typically define it as pain lasting for at least **2 months** after surgery. - The definition requires a minimum duration of 2 months, not 3 months, for the pain to be considered chronic or persistent. **Pain from pre-surgical problem is excluded** - Persistent postoperative pain refers to new or increased pain directly attributable to the surgical procedure itself, excluding the original pain condition. - This criterion ensures that the **chronic pain** being evaluated is a consequence of the surgery and not a continuation or recurrence of the initial problem. *Pain where other causes are excluded* - This is a key diagnostic criterion, as it ensures that the pain is not due to other independent medical conditions, infections, or surgical complications. - Excluding other causes helps to confirm that the persistent pain syndrome is directly related to the **surgical intervention**. *Pain that develops after surgical procedure* - The pain must have developed or significantly increased in intensity after the surgical procedure for it to be considered persistent postoperative pain. - This distinguishes it from pre-existing pain conditions that may be ongoing but are not directly linked to the **surgical trauma**.

Q: Visual analogue scale is most widely used to measure

Pain intensity. ***Pain intensity*** - The **Visual Analogue Scale (VAS)** is a psychometric response scale primarily used to measure the subjective intensity of **pain**. - It allows patients to indicate their pain level on a continuous scale, typically a 10 cm line, providing a more nuanced measure than categorical scales. *Sleep* - While sleep quality and subjective experience can be assessed, the **VAS** is not the primary or most widely used tool for measuring sleep itself. - **Polysomnography** and various sleep questionnaires are more commonly employed for sleep assessment. *Sedation* - Though subjective sedation levels can be rated, more specific scales like the **Ramsay Sedation Scale** or **Richmond Agitation-Sedation Scale (RASS)** are more commonly used for objective and consistent evaluation of sedation. *Depth of anaesthesia* - **Depth of anaesthesia** is primarily measured using objective physiological parameters and processed **electroencephalogram (EEG)** analysis (e.g., Bispectral Index or BIS), not subjective scales like the VAS. - These objective measures provide real-time data to guide anesthetic administration.

Q: Which of the following is used to measure pain intensity

Numerical rating scale. ***Numerical rating scale*** - The **Numerical Rating Scale (NRS)** is a simple, 11-point scale (0-10) where 0 means "no pain" and 10 means "worst possible pain," making it a direct measure of pain intensity. - It is widely used for its **ease of administration** and ability to track changes in pain intensity over time. *Visual analog scale* - The **Visual Analog Scale (VAS)** measures pain intensity using a 10 cm line where patients mark their pain level. While it assesses intensity, the NRS is often preferred for its numerical clarity. - It involves a subjective mark on a line rather than a direct number, which can sometimes be less precise for data collection compared to the NRS. *McGill pain questionnaire* - The **McGill Pain Questionnaire (MPQ)** is a comprehensive tool that assesses not only pain intensity but also the **qualitative and affective dimensions of pain**. - It uses a list of descriptors to characterize pain, providing a more detailed picture of the pain experience rather than just a simple intensity score. *Pain behavior checklist* - A **Pain Behavior Checklist (PBC)** focuses on observable behaviors associated with pain, such as guarding, grimacing, or limping. - It measures the **impact of pain on function and behavior**, not direct pain intensity.

Q: A patient after undergoing thoracotomy complains of severe pain. The BEST method of pain control in this patient would be:

Intercostal cryoanalgesia. ***Intercostal cryoanalgesia*** - **Intercostal cryoanalgesia** involves applying extreme cold to the intercostal nerves, leading to temporary nerve denervation and prolonged pain relief. This technique is particularly effective for **post-thoracotomy pain** due to its targeted action and reduced systemic side effects compared to opioids. - The goal is to provide **long-lasting pain control** specifically at the surgical site, allowing for better respiratory mechanics and early mobilization. *Oral morphine* - Oral morphine can provide systemic pain relief, but its onset of action is slower, and it carries the risk of significant **sedation** and **respiratory depression**, which are major concerns in a patient who has just undergone thoracotomy. - While effective, it may not provide optimal local pain control for incisional pain and often requires higher doses to achieve adequate relief, increasing the risk of adverse effects. *Diazepam rectal suppository* - Diazepam is a **benzodiazepine** primarily used for anxiety, muscle spasms, and seizures, not for severe acute surgical pain. It has **no significant analgesic properties**. - Its sedative effects would be contraindicated after thoracotomy due to the risk of respiratory depression and masking potential neurological changes. *IV fentanyl* - IV fentanyl is a potent opioid with a rapid onset and short duration of action, making it useful for breakthrough pain or during immediate post-operative periods. However, it requires **continuous monitoring** and frequent re-dosing. - Like other opioids, it carries risks of **respiratory depression**, nausea, and sedation, making it less ideal for sustained primary pain control immediately after thoracotomy where lung function is critical.

Q: Site of action of epidural analgesia

Substantia gelatinosa. ***Substantia gelatinosa*** - Epidural analgesia primarily acts on the **substantia gelatinosa** (Rexed lamina II) within the **dorsal horn** of the spinal cord. - This area is crucial for processing and modulating **pain signals**, which are inhibited by local anesthetics and opioids administered epidurally. *Anterior horn* - The **anterior horn** (ventral horn) primarily contains **motor neurons** responsible for skeletal muscle control. - While local anesthetics can block motor fibers if they diffuse sufficiently, the primary target for analgesia is sensory. *Ventral horn* - The **ventral horn** is synonymous with the **anterior horn** and is mainly involved in **motor function**. - Its role is not directly related to the primary analgesic effect of epidural medications on pain transmission. *Sensory nerve endings* - **Sensory nerve endings** are located in the periphery, such as the skin, muscles, and organs. - Epidural analgesia acts within the **spinal canal** and does not directly target peripheral sensory nerve endings.

Q: The Children's Hospital of Eastern Ontario Pain Scale (CHEOPS) for rating postoperative pain in children under one year excludes all of the following, EXCEPT:

Verbal response. ***Verbal response*** - The Children's Hospital of Eastern Ontario Pain Scale (CHEOPS) is designed for children **under one year of age**, who are typically pre-verbal. - While verbal complaints are not assessed, a child's **verbal response** (e.g., moaning, crying, or not making sounds at all) in relation to pain is a component of the scale, contributing to the interpretation of their comfort level. *Oxygen saturation* - **Physiological parameters** like oxygen saturation are typically not part of behavioral pain scales like CHEOPS, which focus on observable behaviors. - While low oxygen saturation can indicate distress, it is not a direct measure of pain for this scale. *Torso* - The CHEOPS scale assesses **pain-related behaviors** of extremities (e.g., legs, arms) and facial expressions, but does not specifically include observations of the "torso" as a separate category. - Behaviors like stiffening or arching of the torso might be implicitly considered under overall body tension, but it’s not a distinct domain. *Cry* - The **quality and intensity of crying** is a primary behavioral indicator of pain in pre-verbal infants and is a significant component of many pediatric pain scales, including CHEOPS. - A child's cry, along with other behaviors, helps differentiate between various levels of discomfort or pain.

Q: For comparison grading of pain the scale used is -

Visual scale. ***Visual scale*** - The **Visual Analog Scale (VAS)** is a psychometric response scale used to measure subjective characteristics, like pain intensity, that cannot be directly measured. - Patients mark a point on a **10-cm line** between "no pain" and "worst pain imaginable," allowing for continuous comparison. *Face's scale* - The **Wong-Baker FACES Pain Rating Scale** is primarily used in children or adults with communication difficulties. - It uses **facial expressions** to depict different levels of pain intensity, making it easier for individuals to express their pain. *CHEOPS* - **CHEOPS** stands for the Children's Hospital of Eastern Ontario Pain Scale and is specifically designed for assessing **postoperative pain in infants and young children**. - It observes **behavioral indicators** such as crying, facial expression, and verbal cues, rather than direct self-reporting [1]. *Numerical charts* - **Numerical Rating Scales (NRS)** ask patients to rate their pain intensity on a scale from 0 (no pain) to 10 (worst pain possible). - While commonly used, NRS provides discrete values rather than a continuous visual representation for comparison like the VAS.

Question 1

A painful syndrome characterized by an increased reaction to a stimulus and an increased threshold, along with faulty identification and localization of the stimulus, is called as:

Accepted Answer

Hyperpathia

Answer

Causalgia

Answer

Hyperesthesia

Answer

Phantom pain

Question 2

Commonest complication of celiac plexus block is

Accepted Answer

Hypotension

Answer

Seizures

Answer

Bradycardia

Answer

Retroperitoneal hematoma

Question 3

Stellate ganglion block is useful in :

Accepted Answer

sudeck osteodystrophy

Answer

osteoarthritis of first CMC joint

Answer

tenosynovitis

Answer

compound palmar ganglion

Question 4

Following are the features of persistent postoperative pain EXCEPT:

Accepted Answer

Pain present for at least 3 months

Answer

Pain from pre-surgical problem is excluded

Answer

Pain where other causes are excluded

Answer

Pain that develops after surgical procedure

Question 5

Visual analogue scale is most widely used to measure

Accepted Answer

Pain intensity

Answer

Sleep

Answer

Sedation

Answer

Depth of anaesthesia

Question 6

Which of the following is used to measure pain intensity

Accepted Answer

Numerical rating scale

Answer

Visual analog scale

Answer

McGill pain questionnaire

Answer

Pain behavior checklist

Question 7

A patient after undergoing thoracotomy complains of severe pain. The BEST method of pain control in this patient would be:

Accepted Answer

Intercostal cryoanalgesia

Answer

Oral morphine

Answer

Diazepam rectal suppository

Answer

IV fentanyl

Question 8

Site of action of epidural analgesia

Accepted Answer

Substantia gelatinosa

Answer

Anterior horn

Answer

Ventral horn

Answer

Sensory nerve endings

Question 9

The Children's Hospital of Eastern Ontario Pain Scale (CHEOPS) for rating postoperative pain in children under one year excludes all of the following, EXCEPT:

Accepted Answer

Verbal response

Answer

Oxygen saturation

Answer

Torso

Answer

Cry

Question 10

For comparison grading of pain the scale used is -

Accepted Answer

Visual scale

Answer

Face's scale

Answer

CHEOPS

Answer

Numerical charts

Pain Management — MCQs

Pain Management — MCQs

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