Capacity to consent US Medical PG Practice Questions and MCQs
Practice US Medical PG questions for Capacity to consent. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Capacity to consent US Medical PG Question 1: A 76-year-old man is brought to the hospital after having a stroke. Head CT is done in the emergency department and shows intracranial hemorrhage. Upon arrival to the ED he is verbally non-responsive and withdraws only to pain. He does not open his eyes. He is transferred to the medical ICU for further management and intubated for airway protection. During his second day in the ICU, his blood pressure is measured as 91/54 mmHg and pulse is 120/min. He is given fluids and antibiotics, but he progresses to renal failure and his mental status deteriorates. The physicians in the ICU ask the patient’s family what his wishes are for end-of-life care. His wife tells the team that she is durable power of attorney for the patient and provides appropriate documentation. She mentions that he did not have a living will, but she believes that he would want care withdrawn in this situation, and therefore asks the team to withdraw care at this point. The patient’s daughter vehemently disagrees and believes it is in the best interest of her father, the patient, to continue all care. Based on this information, what is the best course of action for the physician team?
- A. Call other family members and consult them for their opinions
- B. Listen to the patient’s daughter’s wishes and continue all care
- C. Compromise between the wife and daughter and withdraw the fluids and antibiotics but keep the patient intubated
- D. Listen to the patient’s wife’s wishes and withdraw care (Correct Answer)
- E. Consult the hospital ethics committee and continue all care until a decision is reached
Capacity to consent Explanation: ***Listen to the patient’s wife’s wishes and withdraw care***
- The **durable power of attorney for healthcare** legally designates the wife as the patient's surrogate decision-maker when the patient lacks capacity, overriding other family opinions.
- In the absence of a living will, the **surrogate's interpretation of the patient's best interests** and previously expressed wishes is legally and ethically binding.
*Call other family members and consult them for their opinions*
- While involving family is good practice in general, the presence of a **legally appointed durable power of attorney** means that other family members' opinions do not supersede the designated surrogate's decisions.
- Consulting other family members could **create more conflict and delay** crucial decisions, as the wife holds the legal authority.
*Listen to the patient’s daughter’s wishes and continue all care*
- The daughter's wishes, while understandable, **do not hold legal authority** over the decisions of the legally appointed durable power of attorney.
- Disregarding the wife's authority would be a **breach of ethical and legal obligations** in patient care.
*Compromise between the wife and daughter and withdraw the fluids and antibiotics but keep the patient intubated*
- A compromise that goes against the legal surrogate's explicitly stated decision (to withdraw all care) is **ethically problematic and legally unsound**.
- Healthcare decisions should be based on the patient's best interest as interpreted by the **authorized surrogate**, not on attempting to please all family members.
*Consult the hospital ethics committee and continue all care until a decision is reached*
- While an ethics committee consult is appropriate if there's **disagreement over the interpretation of the patient's wishes** *among legally designated surrogates* or concerns about the surrogate's decision-making capacity, it's not the first step when a clear legal surrogate with documentation is present and makes a decision.
- Continuing all care against the wishes of the **legal proxy** would be contrary to patient autonomy and the principles of substituted judgment.
Capacity to consent US Medical PG Question 2: A 19-year-old woman is diagnosed with metastatic Ewing sarcoma. She has undergone multiple treatments without improvement. She decides to stop treatment and pursue only palliative care. She is of sound mind and has weighed the benefits and risks of this decision. The patient’s mother objects and insists that treatments be continued. What should be done?
- A. Try to seek additional experimental treatments that are promising.
- B. Follow the wishes of the patient’s mother as she has decision making power for the patient.
- C. Continue treatments until the patient has a psychiatric evaluation.
- D. Continue treatment because otherwise, the patient will die.
- E. Halt treatments and begin palliative care. (Correct Answer)
Capacity to consent Explanation: ***Halt treatments and begin palliative care.***
- An adult patient of **sound mind** has the right to refuse medical treatment, even if that refusal may lead to death. This principle is a cornerstone of **patient autonomy**.
- The patient has clearly expressed her wishes after weighing the benefits and risks, making her decision legally and ethically binding.
*Try to seek additional experimental treatments that are promising.*
- While seeking additional treatments might be an option if the patient desired it, forcing such treatments against her will violates her **autonomy** and right to self-determination.
- The case states the patient has decided to stop treatment, making further treatment exploration against her expressed wishes.
*Follow the wishes of the patient’s mother as she has decision making power for the patient.*
- The patient is 19 years old, making her a **legal adult**, and therefore her mother does not have decision-making power over her medical care.
- The patient's mother's wishes, while understandable from an emotional perspective, do not supersede the **competent adult patient's** right to make her own medical decisions.
*Continue treatments until the patient has a psychiatric evaluation.*
- The patient is described as being of "sound mind" and having "weighed the benefits and risks," indicating she is making an informed decision.
- Requesting a psychiatric evaluation without clear evidence of impaired mental capacity would be a disrespectful and unethical attempt to override her **autonomously made decision**.
*Continue treatment because otherwise, the patient will die.*
- While it is true that stopping treatment will likely lead to death, a **competent adult patient** has the right to refuse life-sustaining treatment.
- The patient's right to **autonomy** and control over her own body takes precedence over the desire of others (including medical professionals or family) to prolong life against her will.
Capacity to consent US Medical PG Question 3: A psychiatrist receives a call from a patient who expresses thoughts of harming his ex-girlfriend. The patient describes a detailed plan to attack her at her workplace. Which of the following represents the psychiatrist's most appropriate legal obligation?
- A. Warn the ex-girlfriend and notify law enforcement (Correct Answer)
- B. Only notify the patient's family
- C. Warn only law enforcement
- D. Maintain patient confidentiality
Capacity to consent Explanation: ***Warn the ex-girlfriend and notify law enforcement***
- This scenario directly triggers the **"duty to warn"** and **"duty to protect"** principles, primarily stemming from the **Tarasoff v. Regents of the University of California** case.
- The psychiatrist has a legal obligation to take reasonable steps to protect the identifiable victim, which includes directly warning the intended victim and informing law enforcement.
*Only notify the patient's family*
- Notifying the patient's family alone does not fulfill the **legal obligation to protect** an identifiable third party from a serious threat of harm.
- While family involvement might be part of a comprehensive safety plan, it is insufficient as the sole action in this critical situation.
*Warn only law enforcement*
- While notifying law enforcement is a crucial step, the **Tarasoff duty** specifically mandates warning the **intended victim** directly (or those who can reasonably be expected to notify the victim).
- Relying solely on law enforcement might not ensure the immediate safety of the ex-girlfriend, especially if there's a delay in their response or ability to locate her.
*Maintain patient confidentiality*
- Patient confidentiality is a cornerstone of psychiatric practice, but it is **not absolute** when there is a serious and imminent threat of harm to an identifiable individual.
- The **duty to protect** a potential victim *outweighs* the duty to maintain confidentiality in such extreme circumstances.
Capacity to consent US Medical PG Question 4: A 57-year-old man presents to the clinic for a chronic cough over the past 4 months. The patient reports a productive yellow/green cough that is worse at night. He denies any significant precipitating event prior to his symptoms. He denies fever, chest pain, palpitations, weight changes, or abdominal pain, but endorses some difficulty breathing that waxes and wanes. He denies alcohol usage but endorses a 35 pack-year smoking history. A physical examination demonstrates mild wheezes, bibasilar crackles, and mild clubbing of his fingertips. A pulmonary function test is subsequently ordered, and partial results are shown below:
Tidal volume: 500 mL
Residual volume: 1700 mL
Expiratory reserve volume: 1500 mL
Inspiratory reserve volume: 3000 mL
What is the functional residual capacity of this patient?
- A. 4500 mL
- B. 2000 mL
- C. 2200 mL
- D. 3200 mL (Correct Answer)
- E. 3500 mL
Capacity to consent Explanation: ***3200 mL***
- The **functional residual capacity (FRC)** is the volume of air remaining in the lungs after a normal expiration.
- It is calculated as the sum of the **expiratory reserve volume (ERV)** and the **residual volume (RV)**. In this case, 1500 mL (ERV) + 1700 mL (RV) = 3200 mL.
*4500 mL*
- This value represents the sum of the **inspiratory reserve volume (3000 mL)** and the **residual volume (1700 mL)**, which does not correspond to a standard lung volume or capacity.
- It does not logically relate to the definition of functional residual capacity.
*2000 mL*
- This value represents the sum of the **tidal volume (500 mL)** and the **expiratory reserve volume (1500 mL)**, which is incorrect for FRC.
- This would represent the inspiratory capacity minus the inspiratory reserve volume, which is not a standard measurement used in pulmonary function testing.
*2200 mL*
- This value could be obtained by incorrectly adding the **tidal volume (500 mL)** and the **residual volume (1700 mL)**, which is not the correct formula for FRC.
- This calculation represents a miscombination of lung volumes that does not correspond to any standard pulmonary capacity measurement.
*3500 mL*
- This value is the sum of the **tidal volume (500 mL)**, the **expiratory reserve volume (1500 mL)**, and the **residual volume (1700 mL)**.
- This would represent the FRC plus the tidal volume, which is not a standard measurement and does not represent the functional residual capacity.
Capacity to consent US Medical PG Question 5: A 68-year-old woman was recently diagnosed with pancreatic cancer. At what point should her physician initiate a discussion with her regarding advance directive planning?
- A. Once she enters hospice
- B. Now that she is ill, speaking about advance directives is no longer an option
- C. Only if her curative surgical and medical treatment fails
- D. Only if she initiates the conversation
- E. At this visit (Correct Answer)
Capacity to consent Explanation: ***At this visit***
- Advance care planning should ideally be initiated as soon as a **serious illness** like pancreatic cancer is diagnosed, while the patient still has the capacity to make informed decisions.
- This allows the patient to clearly state their **wishes** for future medical care and designate a **surrogate decision-maker**.
*Once she enters hospice*
- Delaying discussions until hospice care often means the patient's condition has significantly deteriorated, potentially impacting their ability to actively participate in **decision-making**.
- While advance directives are crucial for hospice patients, starting earlier ensures their preferences guide all stages of their care, not just the end-of-life phase.
*Now that she is ill, speaking about advance directives is no longer an option*
- This statement is incorrect as illness is often the **catalyst** for initiating advance care planning, not a barrier.
- Patients often appreciate the opportunity to discuss their wishes, especially when facing a serious diagnosis, to maintain a sense of **control** and ensure their autonomy.
*Only if her curative surgical and medical treatment fails*
- Waiting until treatment failure is too late as the patient's condition may have worsened to a point where they are no longer able to engage in **meaningful discussions** or have decreased mental capacity.
- Advance care planning is about preparing for potential future scenarios, not just reacting to immediate failures; it provides a framework for care regardless of **treatment outcomes**.
*Only if she initiates the conversation*
- While patient initiation is ideal, it is the physician's responsibility to bring up these important discussions, especially with a new diagnosis of a serious illness like **pancreatic cancer**.
- Many patients may not know about advance directives or feel comfortable initiating such a sensitive conversation, so the physician should proactively offer the **opportunity**.
Capacity to consent US Medical PG Question 6: A terminally ill patient with advanced cancer requests that no resuscitation be performed in the event of cardiac arrest. The patient is mentally competent and has completed advance directives. A family member later demands full resuscitation efforts. Which of the following is the most appropriate response?
- A. Honor the patient's DNR (Correct Answer)
- B. Obtain court order
- C. Follow the family's wishes
- D. Consult ethics committee
Capacity to consent Explanation: ***Honor the patient's DNR***
- The patient is **mentally competent** and has legally documented their wishes through **advance directives** (DNR), which must be respected.
- A competent patient's right to **autonomy** in making decisions about their medical care takes precedence over the wishes of family members.
*Obtain court order*
- Seeking a court order is **unnecessary** and **inappropriate** when a competent patient's wishes are clearly documented in advance directives.
- This option would cause **undue delay** and legal entanglement, potentially going against the patient's immediate medical needs and preferences.
*Follow the family's wishes*
- Following the family's wishes would **override the patient's autonomy** and legally binding advance directives.
- The family's emotional distress does not negate the patient's right to determine their own medical care, especially when they are competent.
*Consult ethics committee*
- While an ethics committee can be helpful in complex cases with **unclear directives** or patient capacity issues, it's not the first step here.
- The patient's competence and clear advance directives make the decision straightforward; a committee consultation could cause delay and unnecessary burden.
Capacity to consent US Medical PG Question 7: A 65-year-old man is admitted to the hospital because of a 1-month history of fatigue, intermittent fever, and weakness. Results from a peripheral blood smear taken during his evaluation are indicative of possible acute myeloid leukemia. Bone marrow aspiration and subsequent cytogenetic studies confirm the diagnosis. The physician sets aside an appointed time-slot and arranges a meeting in a quiet office to inform him about the diagnosis and discuss his options. He has been encouraged to bring someone along to the appointment if he wanted. He comes to your office at the appointed time with his daughter. He appears relaxed, with a full range of affect. Which of the following is the most appropriate opening statement in this situation?
- A. Your lab reports show that you have an acute myeloid leukemia
- B. What is your understanding of the reasons we did bone marrow aspiration and cytogenetic studies? (Correct Answer)
- C. You must be curious and maybe even anxious about the results of your tests.
- D. I may need to refer you to a blood cancer specialist because of your diagnosis. You may need chemotherapy or radiotherapy, which we are not equipped for.
- E. Would you like to know all the details of your diagnosis, or would you prefer I just explain to you what our options are?
Capacity to consent Explanation: ***"What is your understanding of the reasons we did bone marrow aspiration and cytogenetic studies?"***
- This **open-ended question** allows the patient to express their current knowledge and perceptions, which helps the physician tailor the discussion.
- It establishes a **patient-centered approach**, respecting the patient's existing understanding and preparing them for further information.
*"You must be curious and maybe even anxious about the results of your tests."*
- While empathic, this statement makes an **assumption about the patient's feelings** rather than inviting them to share their own.
- It is often better to ask directly or use more open-ended questions that allow the patient to express their true emotions, especially given their **relaxed demeanor**.
*"I may need to refer you to a blood cancer specialist because of your diagnosis. You may need chemotherapy or radiotherapy, which we are not equipped for.”"*
- This statement immediately introduces **overwhelming and potentially alarming information** (referral, chemotherapy, radiotherapy) without first establishing the diagnosis or assessing the patient's readiness to receive it.
- It prematurely jumps to treatment and logistics, potentially causing **unnecessary distress** before the patient has processed the core diagnosis.
*"Would you like to know all the details of your diagnosis, or would you prefer I just explain to you what our options are?""*
- While it attempts to assess the patient's preference for information, this question is a **closed-ended "either/or" choice** that might limit the patient's ability to express nuanced needs.
- It also prematurely introduces the idea of "options" without first explaining the diagnosis in an understandable context.
*"Your lab reports show that you have an acute myeloid leukemia"*
- This is a **direct and blunt delivery of a serious diagnosis** without any preparatory context or assessment of the patient's existing knowledge or emotional state.
- Delivering such news abruptly can be shocking and overwhelming, potentially **hindering effective communication** and rapport building.
Capacity to consent US Medical PG Question 8: A 16-year-old teenager presents to his pediatrician complaining of burning with urination and purulent urethral discharge. He states that he has had unprotected sex with his girlfriend several times and recently she told him that she has gonorrhea. His blood pressure is 119/78 mm Hg, pulse is 85/min, respiratory rate is 14/min, and temperature is 36.8°C (98.2°F). The urethral meatus appears mildly erythematous, but no pus can be expressed. A testicular examination is normal. An in-office urine test reveals elevated leukocyte esterase levels. An additional swab was taken for further analysis. The patient wants to get treated right away but is afraid because he does not want his parents to know he is sexually active. What is the most appropriate next step for the pediatrician?
- A. Inform the patient that his parents will not be informed, but he cannot receive medical care without their consent.
- B. Contact child protective services.
- C. Break confidentiality and inform the patient that his parents must consent to this treatment.
- D. Maintain confidentiality and treat the patient. (Correct Answer)
- E. Treat the patient and then break confidentiality and inform the parents of the care he received.
Capacity to consent Explanation: ***Maintain confidentiality and treat the patient.***
* In many jurisdictions, adolescents (often those 12 and older) can consent to **STI treatment** and other sensitive health services (like contraception or mental health care) **without parental consent**, based on **minor consent laws**.
* Prompt treatment is crucial for **gonorrhea** to prevent complications and further transmission, and maintaining confidentiality encourages adolescents to seek necessary care.
*Inform the patient that his parents will not be informed, but he cannot receive medical care without their consent.*
* This statement is incorrect as, in many places, minors can consent to **STI treatment** independently, recognizing the public health importance and the sensitive nature of these conditions.
* Requiring parental consent for STI treatment would create a barrier to care, potentially leading to **untreated infections** and increased transmission risks among adolescents.
*Contact child protective services.*
* This situation involves an adolescent seeking healthcare for an **STI** and a desire for confidentiality, which does not constitute a reason to contact **child protective services (CPS)**.
* CPS is typically contacted in cases of suspected **child abuse, neglect**, or severe safety concerns, none of which are indicated here.
*Break confidentiality and inform the patient that his parents must consent to this treatment.*
* Breaking confidentiality and insisting on parental consent for **STI treatment** for an adolescent is generally not legally or ethically appropriate in many jurisdictions due to **minor consent laws**.
* This action would likely deter the patient from seeking necessary medical care for fear of parental knowledge, compromising their **health and public health efforts** to control STIs.
*Treat the patient and then break confidentiality and inform the parents of the care he received.*
* While treating the patient is appropriate, breaking **confidentiality** afterward by informing the parents without the patient's consent would be a violation of the trust established and potentially ethical and legal guidelines (depending on the jurisdiction).
* The patient explicitly expressed a desire for confidentiality regarding his sexual activity, and breaching this trust, even after treatment, could harm the **patient-provider relationship** and deter future healthcare-seeking behavior.
Capacity to consent US Medical PG Question 9: A patient does not understand the meaning of the doctor's words. What type of barrier does this represent?
- A. Cultural
- B. Linguistic (Correct Answer)
- C. Psychological
- D. Environmental
- E. Physical
Capacity to consent Explanation: ***Linguistic***
- This barrier occurs when there is a **lack of shared language** or when an individual does not understand the specific **vocabulary or jargon** being used.
- In a medical context, this often manifests as a patient not understanding complex medical terms or explanations.
*Cultural*
- This barrier arises from differences in **beliefs, values, customs, or social norms** between individuals.
- It would involve misunderstandings based on cultural perspectives rather than the literal meaning of words themselves.
*Psychological*
- This type of barrier relates to the emotional or mental state of the individuals involved, such as **anxiety, fear, or a lack of attention**.
- While emotional factors can affect understanding, the core issue described here is specifically about the comprehension of words.
*Environmental*
- This barrier refers to **physical distractions or unsuitable surroundings** that hinder effective communication.
- Examples include noise, inadequate privacy, or uncomfortable settings, which are not suggested by the patient's inability to understand the doctor's words.
*Physical*
- This barrier involves **sensory impairments** such as hearing loss, visual deficits, or speech difficulties.
- While physical impairments can affect communication, the scenario describes comprehension of word meaning rather than sensory limitations.
Capacity to consent US Medical PG Question 10: A 29-year-old man develops dysphagia after sustaining a stroke secondary to a patent foramen ovale. He is only able to swallow thin liquids. He has lost 10 pounds because of limited caloric intake. The medical team recommends the placement of a feeding tube, but the patient declines. The patient also has a history of major depressive disorder with psychotic features, for which he has been treated with fluoxetine. He is alert and oriented to person, place, time and situation. He denies any visual or auditory hallucinations, suicidal ideation, guilt, or sadness. He can articulate to the team the risks of not placing a feeding tube, including aspiration, malnutrition, and even death, after discussion with his medical team. The medical team wishes to place the feeding tube because the patient lacks capacity given his history of major depressive disorder with psychotic features. Which of the following is true regarding this situation?
- A. The patient lacks capacity and his healthcare proxy should be contacted regarding placement of a feeding tube
- B. The patient lacks capacity and the feeding tube should be placed
- C. The patient has capacity and may deny placement of the feeding tube (Correct Answer)
- D. The hospital ethics committee should determine whether to place the feeding tube
- E. The patient lacks capacity and the state should determine whether to place the feeding tube
Capacity to consent Explanation: ***The patient has capacity and may deny placement of the feeding tube***
- The patient demonstrates **understanding** of his medical condition, the proposed intervention (**feeding tube**), and the potential **risks** and benefits of his decision. He is also **alert and oriented** and denies active psychotic symptoms, fulfilling the criteria for **decision-making capacity**.
- A patient with capacity has the legal and ethical right to **refuse medical treatment**, even if that decision may lead to negative health outcomes, including death.
*The patient lacks capacity and his healthcare proxy should be contacted regarding placement of a feeding tube*
- Although the patient has a history of **major depressive disorder with psychotic features**, his current mental status exam indicates he is **alert, oriented**, and not experiencing active psychotic symptoms or impaired judgment.
- A medical history of a mental illness does not automatically equate to a **lack of capacity**; capacity must be assessed at the time of the decision.
*The patient lacks capacity and the feeding tube should be placed*
- The patient's ability to articulate the risks of not placing a feeding tube shows he can **reason and appreciate** the consequences of his decision, which are key components of capacity.
- Forcing a medical intervention against the wishes of a patient with capacity violates the principle of **autonomy**.
*The hospital ethics committee should determine whether to place the feeding tube*
- The ethics committee's role is to provide guidance in complex ethical dilemmas, but it does not **override a patient's capacity** to make their own medical decisions.
- If the patient has capacity, his decision is paramount, and the ethics committee would likely affirm his right to refuse treatment.
*The patient lacks capacity and the state should determine whether to place the feeding tube*
- Referral to state authorities for medical decision-making is typically reserved for situations where a patient is found to **lack capacity** and there is no designated surrogate decision-maker or significant conflict.
- Given the patient's demonstrated capacity, such a measure would be **unnecessary** and an infringement on his rights.
More Capacity to consent US Medical PG questions available in the OnCourse app. Practice MCQs, flashcards, and get detailed explanations.
