Free OSCE MCQ Questions and Answers — Questions and Answers
Question 1: Which of the following does not fall within the ABCDE method of patient assessment in an emergency?
- Breathing
- Airway
- Disability
- Circulation
- Examination (Correct answer)
Correct answer: Examination
The ABCDE method is a systematic, prioritized approach to assessing and managing critically ill or injured patients in an emergency. It stands for Airway, Breathing, Circulation, Disability (neurological status), and Exposure (undressing to examine for injuries). 'Examination' is a broad term that encompasses elements of ABCDE but is not a distinct step within the acronym itself.
Question 2: What causes upper gastrointestinal bleeding (UGIB) the most frequently?
- Angiodysplasia
- Peptic ulcer disease (Correct answer)
- Oesophageal varices
- Mallory-Weiss tear
- Gastric cancer
Correct answer: Peptic ulcer disease
Peptic ulcer disease, which includes ulcers in the stomach (gastric) or duodenum, is the most frequent cause of upper gastrointestinal bleeding (UGIB). These ulcers can erode into blood vessels, leading to significant blood loss that manifests as vomiting blood (hematemesis) or black, tarry stools (melena).
Question 3: What is the best course of treatment for someone who has suspected anaphylaxis?
- Administer intravenous hydrocortisone
- Administer oral antihistamine
- Administer nebulised salbutamol
- Administer subcutaneous terbutaline
- Administer intramuscular adrenaline (Correct answer)
Correct answer: Administer intramuscular adrenaline
For suspected anaphylaxis, the most crucial and immediate treatment is the administration of intramuscular adrenaline (epinephrine). Adrenaline rapidly counteracts the severe allergic reaction by constricting blood vessels, relaxing airway muscles, and reducing swelling, thereby stabilizing the patient's life-threatening symptoms.
Question 4: What kind of stroke occurs most frequently?
- Subarachnoid hemorrhage
- Cerebral venous thrombosis
- Ischemic stroke (Correct answer)
- Hermorrhagic stroke
- Transient ischemic attack
Correct answer: Ischemic stroke
Ischemic stroke is the most prevalent type of stroke, accounting for approximately 87% of all cases. It occurs when a blood clot obstructs an artery supplying blood to the brain, leading to a lack of oxygen and nutrients that causes brain cells to die.
Question 5: What causes community-acquired pneumonia (CAP) the most frequently?
- Haemophilus influenzae
- Staphylococcus aureus
- Legionella pneumophila
- Streptococcus pneumoniae (Correct answer)
- Mycoplasma pneumoniae
Correct answer: Streptococcus pneumoniae
Streptococcus pneumoniae is the most common bacterial cause of community-acquired pneumonia (CAP) in adults, accounting for a significant percentage of cases. This bacterium frequently colonizes the upper respiratory tract and can lead to severe lung infections, making it a primary target for empirical antibiotic therapy in CAP.
Question 6: What kind of skin cancer occurs most frequently?
- Squamous cell carcinoma
- Basal cell carcinoma (Correct answer)
- Kaposi sarcoma
- Melanoma
- Merkel cell carcinoma
Correct answer: Basal cell carcinoma
Basal cell carcinoma (BCC) is the most frequently occurring type of skin cancer, comprising about 80% of all non-melanoma skin cancers. It typically originates from the basal cells of the epidermis and is strongly associated with chronic exposure to ultraviolet (UV) radiation. While BCC rarely metastasizes, it can be locally destructive if left untreated.
Question 7: What causes acute pancreatitis most frequently?
- Alcohol
- Gallstones (Correct answer)
- Medications
- Hypertriglyceridemia
- Trauma
Correct answer: Gallstones
Gallstones are the leading cause of acute pancreatitis, responsible for approximately 35-40% of all cases. They can obstruct the common bile duct or the pancreatic duct, leading to bile reflux into the pancreas and premature activation of digestive enzymes within the gland, which triggers inflammation and autodigestion.
Question 8: What kind of headache is more common?
- Tension-type headache (Correct answer)
- Migraine
- Sinus headache
- Cluster headache
- Medication-overuse headache
Correct answer: Tension-type headache
Tension-type headaches (TTH) are the most common type of primary headache, affecting a large portion of the global population. They are characterized by a mild to moderate, bilateral, pressing or tightening pain that is not aggravated by physical activity, often linked to stress or muscle tension in the head and neck.
Question 9: What causes urinary tract infections (UTIs) most frequently?
- Enterococcus faecalis
- Proteus mirabilis
- Staphylococcus saprophyticus
- Klebsiella pneumoniae
- Escherichia coli (Correct answer)
Correct answer: Escherichia coli
Escherichia coli (E. coli) is overwhelmingly the most common cause of urinary tract infections (UTIs), responsible for 75-95% of uncomplicated cases. This bacterium, a normal inhabitant of the gastrointestinal tract, possesses fimbriae that allow it to adhere to uroepithelial cells, facilitating its ascent into the bladder and causing infection.
Question 10: What kind of arthritis is the most prevalent?
- Gout
- Psoriatic arthritis
- Osteoarthritis (Correct answer)
- Rheumatoid arthritis
- Ankylosing spondylitis
Correct answer: Osteoarthritis
Osteoarthritis (OA) is the most prevalent form of arthritis, affecting millions worldwide, particularly older adults. It is a degenerative joint disease characterized by the breakdown of joint cartilage and underlying bone, leading to pain, stiffness, and reduced joint function over time.
Question 11: What causes severe gastroenteritis in children the most frequently?
- Astrovirus
- Rotavirus (Correct answer)
- Norovirus
- Adenovirus
Correct answer: Rotavirus
Rotavirus was historically the leading cause of severe gastroenteritis in infants and young children globally, often resulting in dehydration and hospitalization. Although widespread vaccination has significantly reduced its incidence, it remains a major pathogen responsible for pediatric gastroenteritis in many regions.
Free OSCE MCQ Questions and Answers
Which of the following does not fall within the ABCDE method of patient assessment in an emergency?