Opioid-Sparing Analgesia Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Opioid-Sparing Analgesia. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Opioid-Sparing Analgesia Indian Medical PG Question 1: What is the name of the nerve block technique shown in the image?
- A. Intra-arterial anesthesia (Correct Answer)
- B. Bier's block
- C. Regional anesthesia
- D. Axillary block
Opioid-Sparing Analgesia Explanation: ***Intra-arterial anesthesia***
- The image shows a **cannula inserted directly into an artery**, indicated by the blood reflux and the context of anesthesia, suggesting direct drug delivery into the arterial system.
- This method is used for specific types of regional pain management or diagnostic procedures where direct arterial access is required for **localized drug distribution**.
*Bier's block*
- A Bier's block, or **intravenous regional anesthesia**, involves injecting local anesthetic into a **vein** in an extremity after it has been exsanguinated and isolated by a tourniquet.
- The image clearly shows a **bright red blood flash**, characteristic of arterial cannulation, not venous.
*Regional anesthesia*
- This is a broad term referring to the **anesthesia of a specific region** of the body and encompasses various techniques.
- While intra-arterial anesthesia is a type of regional anesthesia, "regional anesthesia" itself is too general to specifically describe the technique shown.
*Axillary block*
- An **axillary block** is a type of peripheral nerve block targeting the brachial plexus in the axilla to anesthetize the arm.
- The image does not depict the axillary region or the characteristic needle placement for an axillary block; instead, it shows direct vascular access.
Opioid-Sparing Analgesia Indian Medical PG Question 2: Match the following:
A) Glossopharyngeal nerve
B) Spinal accessory nerve
C) Facial nerve
D) Mandibular nerve
1) Shrugging of shoulder
2) Touch sensation from the posterior one-third of the tongue
3) Chewing
4) Taste from the anterior two-thirds of the tongue
- A. A-3 , B-1 , C-4 , D-2
- B. A-2 , B-3 , C-4 , D-1
- C. A-4 , B-1 , C-2 , D-3
- D. A-2 , B-1 , C-4 , D-3 (Correct Answer)
Opioid-Sparing Analgesia Explanation: ***A-2 , B-1 , C-4 , D-3***
- **A) Glossopharyngeal nerve (CN IX)** is responsible for **general sensation and taste from the posterior one-third of the tongue** [1]. (2).
- **B) Spinal Accessory nerve (CN XI)** innervates the **sternocleidomastoid** and **trapezius muscles**, which are involved in shrugging the shoulders (1).
- **C) Facial nerve (CN VII)** carries **taste sensation from the anterior two-thirds of the tongue** [1] (4) via the chorda tympani.
- **D) Mandibular nerve (V3)**, a branch of the trigeminal nerve, innervates the muscles of mastication, enabling **chewing** (3).
*A-3 , B-1 , C-4 , D-2*
- This option incorrectly associates the **glossopharyngeal nerve** with chewing, which is a function of the mandibular nerve (V3).
- It also incorrectly associates the **mandibular nerve** with touch sensation from the posterior one-third of the tongue, which is a function of the glossopharyngeal nerve [1].
*A-2 , B-3 , C-4 , D-1*
- This option incorrectly links the **spinal accessory nerve** with chewing; this nerve primarily controls shoulder and neck movements.
- It also incorrectly assigns shrugging of the shoulder to the **mandibular nerve** instead of the spinal accessory nerve.
*A-4 , B-1 , C-2 , D-3*
- This choice incorrectly attributes **taste from the anterior two-thirds of the tongue** to the glossopharyngeal nerve, which supplies the posterior one-third [1].
- It also incorrectly links **touch sensation from the posterior one-third of the tongue** to the facial nerve, which is involved in taste from the anterior two-thirds [1].
Opioid-Sparing Analgesia Indian Medical PG Question 3: Which of the following anaesthetic agent lacks analgesic effect?
A) N2O
B) Thiopentone
C) Methohexitone
D) Ketamine
E) Fentanyl
- A. N2O
- B. Methohexitone
- C. Ketamine
- D. Fentanyl
- E. Thiopentone (Correct Answer)
Opioid-Sparing Analgesia Explanation: ***Thiopentone***
- Thiopentone is a **barbiturate** anesthetic primarily used for inducing anesthesia.
- It provides significant **hypnosis** and sedation but lacks intrinsic **analgesic properties**, meaning it does not relieve pain.
*N2O*
- **Nitrous oxide** (N2O) is an inhalation anesthetic that provides good **analgesia** at sub-anesthetic concentrations.
- It is often used as an adjunct to other anesthetic agents to enhance pain relief during procedures.
*Methohexitone*
- Methohexitone is another **barbiturate** similar to thiopentone, used for induction of anesthesia.
- While it provides rapid **hypnosis**, it also lacks significant **analgesic effects**.
*Ketamine*
- Ketamine is a **dissociative anesthetic** known for its potent **analgesic properties**.
- It works by blocking **NMDA receptors**, providing pain relief even at sub-anesthetic doses.
*Fentanyl*
- Fentanyl is a powerful **opioid analgesic** that is commonly used in anesthesia for its strong pain-relieving effects.
- It acts on **opioid receptors** in the central nervous system to reduce pain perception.
Opioid-Sparing Analgesia Indian Medical PG Question 4: Which of the following anesthetic agents have good analgesic property? a) Ketamine b) Nitrous oxide c) Thiopentone d) Propofol e) Midazolam
- A. Ketamine and Nitrous oxide (Correct Answer)
- B. Ketamine only
- C. Nitrous oxide and Thiopentone
- D. Ketamine and Propofol
- E. Midazolam only
Opioid-Sparing Analgesia Explanation: ***Ketamine and Nitrous oxide***
- **Ketamine** is a dissociative anesthetic with potent **analgesic properties** secondary to its action as an **NMDA receptor antagonist**.
- **Nitrous oxide** is an inhalational anesthetic known for its mild to moderate **analgesic effects**, making it useful for sedation and pain relief.
*Ketamine only*
- While **ketamine** has excellent analgesic properties, this option is incomplete as **nitrous oxide** also contributes significant analgesia among the choices.
- Excluding other agents with analgesic properties makes this option less comprehensive than the correct answer.
*Ketamine and Propofol*
- **Ketamine** possesses strong analgesic effects, but **propofol** is a sedative-hypnotic agent with no significant intrinsic **analgesic properties**.
- Propofol provides anesthesia and sedation but typically requires co-administration with opioids for pain control.
*Nitrous oxide and Thiopentone*
- **Nitrous oxide** provides analgesia, but **thiopentone** (a barbiturate) is primarily an anesthetic and sedative with **no significant analgesic properties**.
- Thiopentone can induce unconsciousness rapidly but does not relieve pain.
*Midazolam only*
- **Midazolam** is a benzodiazepine primarily used for sedation, anxiolysis, and amnesia, with **no intrinsic analgesic properties**.
- Its effects can reduce stress and perception of pain, but it does not directly act as an analgesic.
Opioid-Sparing Analgesia Indian Medical PG Question 5: Which of the following is an example of placebo?
- A. Cognitive behavioral therapy
- B. Sugar pill given as medication
- C. Physiotherapy
- D. Sham surgery (Correct Answer)
Opioid-Sparing Analgesia Explanation: ***Sham surgery***
- Sham surgery involves a **mock surgical procedure** performed on a patient without the actual therapeutic intervention, often used as a control in clinical trials.
- Its purpose is to account for the **placebo effect** of the surgical experience itself, including anesthesia and incisions, independent of the direct physiological effects of the surgery.
*Cognitive behavioral therapy*
- **Cognitive behavioral therapy (CBT)** is a structured psychotherapy that helps individuals identify and change negative thought patterns and behaviors [1].
- It is a **specific, active treatment** with established mechanisms of action, not merely an inert substance or procedure [1].
*Sugar pill given as medication*
- While a **sugar pill** is a classic example of a placebo, the question asks for *an* example of a placebo, and sham surgery is also a valid and often more complex form.
- A sugar pill's effect primarily stems from the **expectation of relief** from a medication.
*Physiotherapy*
- **Physiotherapy** involves physical methods (e.g., exercise, massage, heat therapy) to treat disease, injury, or deformity.
- It is an **active therapeutic intervention** with direct physiological and biomechanical effects, not an inert or non-specific treatment.
Opioid-Sparing Analgesia Indian Medical PG Question 6: Which drug is commonly used for outpatient department (OPD) analgesia?
- A. Diclofenac
- B. Ibuprofen
- C. Paracetamol (Correct Answer)
- D. Tramadol
Opioid-Sparing Analgesia Explanation: ***Paracetamol***
- It is a widely used and generally **safe analgesic** and antipyretic often prescribed for mild to moderate pain in an outpatient setting.
- Its favorable side effect profile and availability as an **over-the-counter (OTC)** medication make it a first-choice drug for many common pain conditions.
*Diclofenac*
- While it is an effective NSAID used for pain and inflammation, its use can be associated with **gastrointestinal side effects** like ulcers and bleeding, as well as cardiovascular risks.
- It is often reserved for more significant inflammatory pain or when other analgesics are insufficient, and may require more careful monitoring in an outpatient setting.
*Ibuprofen*
- Similar to diclofenac, Ibuprofen is an **NSAID** which is effective for pain and inflammation. However, it also carries risks of **gastrointestinal irritation** and renal side effects, especially with prolonged use or in certain patient populations.
- While available OTC, its use for routine outpatient analgesia may be less preferred than paracetamol in some cases due to its GI and renal side effect profile.
*Tramadol*
- Tramadol is a **central acting opioid analgesic** with a higher potential for side effects such as nausea, dizziness, constipation, and the risk of dependence or abuse.
- It is typically reserved for moderate to severe pain that is not adequately managed by non-opioid analgesics, and its prescription often involves more stringent monitoring than paracetamol.
Opioid-Sparing Analgesia Indian Medical PG Question 7: A 35-year-old woman presents with a history of recurrent migraines, unresponsive to prophylactic medications. What is the most appropriate next step in management?
- A. Combination prophylactic therapy
- B. Trial of alternative prophylactic medication from different class
- C. Referral to headache specialist
- D. Evaluation for medication overuse headaches (Correct Answer)
Opioid-Sparing Analgesia Explanation: ***Evaluation for medication overuse headaches***
- **Medication overuse headache (MOH)** is a common cause of chronic daily headache and can lead to unresponsiveness to prophylactic treatments in patients with pre-existing primary headache disorders.
- Identifying and addressing MOH involves gradually withdrawing the overused acute medication, which can lead to significant improvement in headache frequency and severity.
*Trial of alternative prophylactic medication from different class*
- While switching prophylactic medications is a standard approach when a drug is ineffective, it's crucial to rule out MOH first, as continued use of acute medications can worsen the underlying migraine condition and perpetuate refractoriness [1].
- Introducing new prophylactic treatments without addressing MOH may not be effective and can delay appropriate management [1].
*Combination prophylactic therapy*
- Combination therapy can be considered for refractory migraines, but it's generally reserved for cases where single-agent prophylactic regimens have failed and MOH has been excluded.
- Adding more medications before assessing for MOH might further complicate treatment and obscure the root cause of treatment unresponsiveness.
*Referral to headache specialist*
- Referral to a headache specialist is often appropriate for refractory migraines, but the specialist will likely also prioritize ruling out secondary causes like MOH.
- A structured evaluation for MOH can often be initiated by the primary care provider before or in conjunction with a specialist referral.
Opioid-Sparing Analgesia Indian Medical PG Question 8: Which Benzodiazepine decreases post-operative nausea & vomiting:-
- A. Midazolam (Correct Answer)
- B. Diazepam
- C. Lorazepam
- D. All of the options
Opioid-Sparing Analgesia Explanation: ***Midazolam***
- **Midazolam** is a commonly used benzodiazepine in anesthesia that has been shown to have **antiemetic properties** and can decrease the incidence of **postoperative nausea and vomiting (PONV)**.
- Its mechanism may involve its sedative and anxiolytic effects, indirectly reducing the triggers for nausea.
*Diazepam*
- While **diazepam** is a benzodiazepine with sedative and anxiolytic effects, it is not primarily known for reducing PONV.
- Its longer duration of action compared to midazolam can also contribute to unwanted **postoperative sedation**.
*Lorazepam*
- **Lorazepam** is another benzodiazepine used for anxiolysis and sedation but is not a primary agent for the prevention of PONV.
- Like diazepam, its prolonged effects can lead to **delayed recovery** and drowsiness, which may not be desirable in the postoperative period.
*All of the options*
- While all listed drugs are benzodiazepines, only **midazolam** is consistently recognized and utilized for its ability to reduce PONV in the perioperative setting.
- The other benzodiazepines do not demonstrate the same consistent benefit in PONV reduction and may have other side effects that limit their utility for this specific purpose.
Opioid-Sparing Analgesia Indian Medical PG Question 9: Which opioid drug is effectively administered via the transbuccal route?
- A. Sulfentanil
- B. Remifentanil
- C. Fentanyl (Correct Answer)
- D. Alfentanil
Opioid-Sparing Analgesia Explanation: ***Fentanyl***
- **Fentanyl** is a potent, **lipophilic opioid** that is well-absorbed through mucous membranes, making it suitable for **transbuccal administration**.
- Its high potency and rapid onset of action when administered transbuccally make it useful for breakthrough pain or rapid analgesia.
*Sulfentanil*
- While also a potent opioid, **sulfentanil** is primarily used intravenously for anesthesia and is not commonly formulated or administered via the transbuccal route.
- Its chemical properties and pharmacokinetic profile do not lend themselves as readily to transbuccal absorption compared to fentanyl for practical clinical use.
*Remifentanil*
- **Remifentanil** is an **ultra-short-acting opioid** metabolized by plasma esterases, making it ideal for continuous intravenous infusions where rapid offset is desired.
- Its rapid metabolism and specific pharmacokinetic properties make it unsuitable for transbuccal extended release or sustained absorption.
*Alfentanil*
- **Alfentanil** is a short-acting opioid predominantly used intravenously for induction and maintenance of anesthesia.
- Although it has a rapid onset, it is not optimized or commonly utilized for transbuccal administration due to its lower lipophilicity and different absorption characteristics compared to fentanyl.
Opioid-Sparing Analgesia Indian Medical PG Question 10: The image given below shows neuromuscular monitoring of the patient after anesthesia. What is the most commonly used nerve for monitoring?
- A. Ulnar nerve (Correct Answer)
- B. Median nerve
- C. Radial nerve
- D. Metacarpal nerve
Opioid-Sparing Analgesia Explanation: ***Ulnar nerve***
- The **ulnar nerve** is the most commonly chosen site for neuromuscular monitoring due to its ease of accessibility and predictable response of the **adductor pollicis muscle**.
- Stimulation of the ulnar nerve at the wrist causes **adduction of the thumb**, which is easily quantifiable and provides reliable information about neuromuscular blockade.
*Median nerve*
- While the median nerve can be monitored, it is **less commonly used** than the ulnar nerve due to potential for confusing responses or less clear twitch measurements.
- Stimulation of the median nerve primarily leads to **flexion of the thumb and fingers**, but the adductor pollicis response from ulnar nerve stimulation is often preferred for its clear isolation.
*Radial nerve*
- The radial nerve innervates muscles involved in **wrist and finger extension**, which are not typically targeted for standard neuromuscular monitoring.
- Its stimulation can be more complex to interpret and may not provide the precise information needed for monitoring paralytic depth in the same way as the ulnar nerve.
*Metacarpal nerve*
- The term "metacarpal nerve" is broad and refers to nerves near the metacarpals, which are **not primary sites** for direct neuromuscular blocking agent monitoring.
- Specific named peripheral nerves like the ulnar, median, or radial nerves are targeted for their predictable muscle responses, not generalized metacarpal innervation.
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