Test 6

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An 81-year-old woman presents to the clinic for memory and behavior problems. Her granddaughter reports that the patient has been increasingly forgetful over the last one year. Over the last three months, the patient has been getting more frustrated and angry. She has become very paranoid. She often needs help to choose proper clothing for the season and occasion. Her MMSE score is 16/30. After a full neurological examination and cognitive testing, a diagnosis of late-onset Alzheimer disease is made. She is prescribed a centrally acting, rapid, and reversible acetylcholinesterase inhibitor. Which of the following is the most common side effect of this medication?

  • Weight gain
  • Weight loss
  • Heart block
  • Gastrointestinal disturbances (correct)

A 57-year-old man with a history of schizophrenia presents to the clinic with complaints of uncomfortable involuntary spasms of the neck. The patient is accompanied by his brother, who reports he started to notice the symptoms a couple of weeks prior. The severity of the movement progressively worsened since the onset. When asked about his medication profile, the brother notes that the patient has been taking the same neuroleptic for a year. The patient has remained compliant with the medication. He has not had a psychotic relapse in the past year. Development of which abnormal motor manifestation occurs most frequently in the setting of this pathological state?

Torticollis

A patient requiring drainage of an abscess was administered lidocaine, a commonly used local anesthetic. If the patient mistakenly receives a toxic dose of lidocaine intravenously, it is possible to observe

  • Epileptic seizures and coma (correct)
  • There will be no immediate effect, but massive hepatocellular damage will develop later
  • Excessive salivation, mydriasis, and diarrhea
  • Hyperthermia and hypertension
  • Cardiovascular stimulation

A previously healthy 40-year-old woman began to complain of slow thinking, lack of coordination, and short jerky nonrhythmic arm movements. The woman has no history of psychiatric or neurological diseases, but has relatives with the same manifestations. Although further research is needed, it is very likely that the most appropriate treatment will be found

<p>Haloperidol (D)</p> Signup and view all the answers

Which of the following drugs is used to treat attention deficit hyperactivity disorder, enuresis, and chronic pain?

<p>Imipramine (D)</p> Signup and view all the answers

A 56-year-old woman who underwent a hysterectomy is transferred to the postsurgical unit. As her post-anesthetic medications wear off, she has a noticeable facial grimace, and complains of severe pain. What method of pain management would be most appropriate for this patient?

<p>morphine by Patient Controlled Analgesia (PCA) pump (A)</p> Signup and view all the answers

A 38-year-old man presents with lower back pain. A physical examination shows painful and diminished forward flexion with tenderness over both buttocks. Laboratory tests show an elevated erythrocyte sedimentation rate. Rheumatoid factor and antinuclear antibody are negative. HLA-B27 is positive. X-rays of his lumbar spine and sacroiliac joints are normal. He is diagnosed with ankylosing spondylitis. Which of the following is the appropriate first-line pharmacotherapy?

<p>Diclofenac (D)</p> Signup and view all the answers

A 29-year-old male with a past medical history of human immunodeficiency virus (HIV) infection, well-controlled on antiretroviral therapy for 1 year presents to the clinic for follow-up. His CD4 count last week was 500 cells/microliter. He reports a constant cough for the last 2 weeks. His chest x-ray shows bilateral infiltrates. Pneumocystis jirovecii pneumonia is confirmed with sputum antigen testing and treatment is started. What is the next step in the management of his HIV?

<p>Check HIV viral load and sensitivity (C)</p> Signup and view all the answers

Which of the following statements best defines concussion?

<p>An alteration in mental status due to the head striking an object during a fall and a loss of consciousness, which may or may not occur, for up to 30 minutes (A)</p> Signup and view all the answers

What is the preferred injection site when vaccinating an 8-week-old child?

<p>M. vastus lateralis (C)</p> Signup and view all the answers

Your 65 year old grandfather who has a history of heart disease begins to have an attack of exertional angina while working beside you in his garden. He gestures towards a dark glass vial in his pocket that has a prescription label indicating it contains nitroglycerin triturate. How would you help him administer this dosage form?

<p>place it under his tongue (B)</p> Signup and view all the answers

A 47-year-old male presents to the clinic due to an ongoing diagnosis of gouty arthritis. His serum uric acid level is elevated, and febuxostat is prescribed. Approximately one week later, he returns complaining of a painful episode that "feels like a gout attack." Which of the following is the best explanation for this episode?

<p>Febuxostat treatment can increase the incidence of gout flares during early treatment (A)</p> Signup and view all the answers

A child is admitted with nausea, vomiting and diarrhea and the doctor prescribes several medications. Which of the following statements is true about this patient? (More than one answer is possible)

<p>The level of development of the child should be taken into account. (B), Renal tubular function is reduced (C), Dehydration can cause toxicity (D), Medicines should not be administered orally (E)</p> Signup and view all the answers

An 18-year-old female presents to the clinic for acne with a topical retinoid and a benzoyl peroxide wash. With treatment, she develops dry flaking skin. What would be the best moisturizing agent for her that can help clear her acne, hydrate her skin and also reduce its flaking?

<p>Glycolic acid (D)</p> Signup and view all the answers

A 57-year-old man was admitted to the Department of Invasive Surgery after an acute myocardial infarction. The patient presents with rapidly developing symptoms of heart failure with reduced ejection fraction, and several medications are discussed. What furosemide, dobutamine and digoxin have in common is that they

<p>Reduce pulmonary edema (A)</p> Signup and view all the answers

A 27-year-old drug addict injected himself with what he thought was methamphetamine, but did not get any methamphetamine-like effects. The patient was admitted to the Emergency Department with suspected antimuscarinic poisoning. An expected symptom of antimuscarinic poisoning is

<p>Pupillary constriction (A)</p> Signup and view all the answers

A 55-year-old male presents with an inability to open his mouth. He reports that he woke up this morning and could not open his mouth, which he has never experienced. His past medical history includes hypertension, ischemic heart disease, and type 2 diabetes mellitus. He was recently started on metoclopramide for diabetic gastropathy. In addition, he takes metformin, glimepiride, amlodipine, losartan, aspirin, bisoprolol, and atorvastatin. Examination reveals restricted mouth opening and deviation of the head to the left. The maximal interincisal distance is 10 mm. Which of the following agents is most likely responsible for this patient's presentation?

<p>Metoclopramide (D)</p> Signup and view all the answers

A 52-year-old woman consults you regarding prolonged insomnia. Which of the following would we prescribe, since it has no anticonvulsant or muscle relaxant effect and minimally affects REM-sleep? Its effects are antagonized by flumazenil.

<p>Ramelteon (C)</p> Signup and view all the answers

Death of neurons in this CNS pathway causes Parkinson's disease

<p>Nigrostriatal (D)</p> Signup and view all the answers

After eating a meal including sardines, cheese, and red wine, a patient takes selegiline for Parkinson's disease. His blood pressure rises to 187/133 mmHg. The patient was admitted to the Emergency Department. What is the most likely explanation for this unusual reaction to selegiline

<p>Selegiline causes tyramine to be released from food (B)</p> Signup and view all the answers

A 52-годишна жена се консултира с Вас по повод на продължително безсъние. Кое от посочените бихне назначили, тъй като не притежава антиконвулсивен нито миорелаксиращ ефект и минимално повлиява REM-съня? Ефектите му се антагонизират от flumazenil

<p>Ramelteon (A)</p> Signup and view all the answers

A 57-годишен мъж постъпва в Отделение по инвазивна хирургия след остър миокарден инфаркт. Пациентът показва бързо развиващи се симптоми на сърдена недостатъчност с намалена фракция на изтласквани и се обсъжда прилагане на няколко лекарства. Общото за furosemide, dobutamine и digoxine е това, че те

<p>Намаляват белодробния оток (B)</p> Signup and view all the answers

Flashcards

What is Donepezil used for?

Donepezil is a centrally acting, rapid, and reversible inhibitor of acetylcholinesterase, prescribed for all stages of Alzheimer's disease.

What are the most common side effects of Donepezil?

Gastrointestinal disturbances like nausea, diarrhea, and vomiting are the most common side effects of Donepezil.

What is Tardive Dystonia?

Tardive dystonia is a specific type of extrapyramidal symptom (EPS) that presents as focal dystonia, most notably torticollis, or a twisted neck.

What is the most common manifestation of Tardive Dystonia?

Torticollis is the most common manifestation of Tardive Dystonia, followed by blepharospasm, and then pharyngeal dystonia, oromandibular dystonia, and dystonia of the lips and tongue.

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What is Febuxostat used for?

Febuxostat, a xanthine oxidase inhibitor, is used to lower uric acid levels in gout patients.

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Why might a patient on Febuxostat still experience gout flares?

Febuxostat can increase the incidence of acute gout flares, despite lowering uric acid levels, due to the mobilization of urate crystals from joints and tissues.

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What are the primary effects of intravenous lidocaine overdose?

Intravenous lidocaine overdose typically causes CNS stimulation, with potential seizures, and minimal cardiovascular depression.

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What medication might be used to treat Huntington's disease?

Haloperidol, a dopamine receptor blocker, is a potential treatment option for Huntington's disease, along with dopamine depletion drugs like tetrabenazine.

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What is Imipramine used for?

Imipramine, a tricyclic antidepressant, is used to treat attention deficit hyperactivity disorder (ADHD), enuresis, and chronic pain.

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What is Patient-controlled Analgesia (PCA)?

Patient-controlled analgesia (PCA) pumps allow patients to self-administer a controlled dose of an analgesic, usually morphine, improving pain management in post-surgical settings.

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What is the first-line treatment for ankylosing spondylitis?

NSAIDs (Non-steroidal anti-inflammatory drugs) are the first-line pharmacotherapy for seronegative spondyloarthropathies, such as ankylosing spondylitis.

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What is the goal of treatment for ankylosing spondylitis?

Ankylosing spondylitis is a chronic inflammatory disease predominantly affecting the spine, and is not curable. Treatment focuses on reducing symptoms, functional limitations, and complications.

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What is considered the most reliable indicator of HIV treatment response?

HIV viral load monitoring is the most reliable indicator of treatment response in HIV patients. CD4 counts alone are insufficient.

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What is a concussion?

A concussion is a mild traumatic brain injury (mTBI) that involves an alteration in mental status due to head trauma, with or without loss of consciousness for up to 30 minutes.

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What is the preferred vaccination site for infants under 12 months?

The vastus lateralis muscle is the preferred injection site for vaccinations in infants under 12 months old, due to its larger size and less proximity to bones and nerves.

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How is nitroglycerin typically administered for anginal chest pain?

Sublingual (under the tongue) administration of nitroglycerin is the most effective way to deliver it, bypasses first-pass metabolism, and results in rapid relief of anginal chest pain.

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What pathway in the CNS is affected in Parkinson's disease causing neuron death?

The nigrostriatal pathway is the CNS pathway where neuron death causes Parkinson's disease.

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Why can consuming certain foods like sardines, cheese, and red wine while on Selegiline cause a hypertensive crisis?

Selegiline, an MAO-B inhibitor, elevates catecholamine neurotransmitter levels in sympathetic nerve endings. This combined with tyramine from certain foods can lead to a hypertensive crisis.

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How do anticholinesterase inhibitors work to treat Alzheimer's disease?

Anticholinesterase inhibitors such as Donepezil increase acetylcholine levels in the brain by blocking the enzyme that breaks down acetylcholine.

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What is the Glasgow Coma Scale (GCS), and what is it used for?

The Glasgow Coma Scale (GCS) assesses brain activity and defines consciousness levels based on verbal and motor responses, and eye opening. It's used to classify traumatic brain injury (TBI) severity.

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What is trismus, and which medication is it often associated with?

Acute dystonic reactions, characterized by involuntary muscle spasms and contractions, can be a side effect of metoclopramide. Trismus, or inability to open the mouth, is a manifestation.

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What is Metoclopramide used for, and what serious side effect can it cause?

Metoclopramide, a gastrointestinal motility stimulant, is used to treat nausea, vomiting, and gastroparesis. It's a common culprit in acute dystonic reactions.

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What is Eszopiclone, and what are some of its advantages as a sleep medication?

Eszopiclone is a non-benzodiazepine hypnotic drug used to treat insomnia, having minimal effects on REM sleep and lacking anticonvulsant or muscle relaxant properties.

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What is Flumazenil used for?

Flumazenil is a benzodiazepine antagonist, meaning it can reverse the effects of benzodiazepine medications, including sedation and muscle relaxation.

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Why is the dorsogluteal muscle not preferred for injections in infants?

The dorsogluteal muscle (buttocks) is generally not recommended for injections in infants due to proximity to nerves and the sciatic nerve, which could lead to injury.

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How does Ramelteon work to aid sleep?

Ramelteon is a melatonin receptor agonist used to treat insomnia, targeting the suprachiasmatic nucleus, an area of the brain responsible for regulating sleep cycles.

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Why is dehydration a concern in patients with gastrointestinal issues?

Dehydration can worsen renal tubular function, leading to impaired excretion and increased risk of medication toxicity in patients with gastrointestinal issues such as nausea, vomiting, and diarrhea.

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What is the thalamocortical pathway, and what is its role in Parkinson's disease?

The thalamocortical pathway is involved in relaying sensory information from the thalamus to the cortex. It is not directly linked to Parkinson's disease.

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What is the tuberoinfundibular pathway, and what is its role in Parkinson's disease?

The tuberoinfundibular pathway links the hypothalamus to the pituitary gland. It plays a role in hormone regulation and is not directly involved in Parkinson's disease.

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What is the corticothalamic pathway, and what is its role in Parkinson's disease?

The corticothalamic pathway carries signals from the cortex to the thalamus. It is not linked to Parkinson's disease.

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Study Notes

General Information

  • Information provided was extracted from medical documents.
  • Notes focus on patient cases and treatment details.
  • Information is accurate and concise, focusing on key facts.
  • The notes are focused on medical topics, rather than general information.

Alzheimer's Disease Treatment (Donepezil)

  • Donepezil is a centrally acting, rapid, reversible acetylcholinesterase inhibitor.
  • Approved for all stages of Alzheimer's disease.
  • Common side effects are gastrointestinal (nausea, diarrhea, vomiting).
  • Other side effects include muscle cramps, fatigue, and anorexia, more common with higher doses
  • Side effects are typically mild, transient (up to 3 weeks), and often resolve with continued use.
  • Donepezil can cause bradycardia and heart block, especially in those with underlying heart conditions.
  • Syncopal episodes (fainting) have been reported.
  • Weight loss in about 5% of patients, higher incidence with higher doses.

Schizophrenia and Extrapyramidal Symptoms (EPS)

  • A 57-year-old man with schizophrenia experienced worsening neck spasms.
  • The patient had been taking the same neuroleptic (antipsychotic medication) for a year.
  • The most frequent manifestation in this case was Torticollis.
  • Tardive dystonia is also a possible symptom (less frequent than torticollis).
  • Tardive manifestations can include blepharospasm, pharyngeal dystonia, oromandibular dystonia, and dystonia of the lips and tongue; dystonia of arms, legs, and trunk is less frequent.

Ankylosing Spondylitis

  • First-line pharmacotherapy for seronegative spondyloarthropathies is NSAIDs (Nonsteroidal anti-inflammatory drugs)
  • Systemic corticosteroids should be used sparingly.
  • Non-biologic DMARDs are not effective for axial spondyloarthropathies like ankylosing spondylitis.
  • Plain film X-rays helpful in detecting late changes such as "shiny corner," "bamboo spine," and "squaring" of vertebral bodies; MRI useful for early inflammation signs.

Lidocaine Toxicity

  • Lidocaine is a commonly used local anesthetic.
  • Intravenous overdose can cause CNS effects like seizures and cardiovascular depression (less severe).
  • Massive hepatocellular damage can occur later in overdose cases.

Pain Management in Postoperative Patients

  • In postoperative patients, PCA (patient controlled analgesia) pumps are often an effective pain management method.
  • PCA administration works by patient-initiated release of analgesic (often morphine) allowing for better pain management, compared to other methods of medication delivery.

Attention Deficit Hyperactivity Disorder (ADHD), Enuresis, and Chronic Pain

  • Bupropion is a medication used for ADHD, enuresis, and chronic pain.

Gout Treatment (Febuxostat)

  • Acute gout flares can occur during febuxostat treatment, even if uric acid levels decrease.
  • This is due to mobilization of urate crystals from joints/tissues.
  • Low-dose anti-inflammatory medication is often prescribed in the first few weeks or months of the urate lowering treatment to manage gout flare symptoms.

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