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FSMB / NBME50 Questions
Medical Licensure MCQs
Practice Medical Licensure multiple-choice questions for FSMB / NBME competitive exams. Each question includes the correct answer and a short explanation, and past-paper questions are marked so you can revise both repeated and fresh material in one place.
Liver
Spleen
Bone marrow
Lymph nodes
ExplanationIn adults, the production of blood cells occurs primarily within the red bone marrow.
Calcitonin
Thyroxine
Parathyroid hormone
Insulin
ExplanationParathyroid hormone (PTH) increases blood calcium by acting on bones, kidneys, and intestines.
Storing neurotransmitters
Speeding up nerve impulse transmission
Preventing neuron cell death
Repairing damaged axons
ExplanationMyelin acts as an electrical insulator, allowing for saltatory conduction of action potentials.
Stable angina
Anterior wall myocardial infarction
Pericarditis
Pulmonary embolism
ExplanationST-segment elevation in the precordial leads (V2-V4) is classic for an acute myocardial infarction involving the anterior wall of the heart.
Beta-blockers
ACE inhibitors
Calcium channel blockers
Loop diuretics
ExplanationACE inhibitors are preferred in diabetic patients because they reduce intraglomerular pressure and provide long-term nephroprotection.
Glycolysis
Oxidative phosphorylation
Fermentation
The urea cycle
ExplanationOxidative phosphorylation is the metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing energy which is used to produce ATP.
Rickets
Scurvy
Pellagra
Beriberi
ExplanationVitamin C deficiency leads to a defect in collagen synthesis, resulting in the connective tissue disease known as scurvy.
Mitochondria
Ribosome
Lysosome
Golgi apparatus
ExplanationRibosomes are the cellular structures that translate mRNA into protein chains.
G1 phase
S phase
G2 phase
M phase
ExplanationDNA synthesis or replication occurs specifically during the S (synthesis) phase of interphase.
Missense mutation
Nonsense mutation
Silent mutation
Frameshift mutation
ExplanationA nonsense mutation changes an amino acid codon into a premature stop codon, truncating the protein.
Voluntary muscle control
Regulation of subconscious body functions
Sensory perception
Motor coordination
ExplanationThe autonomic system controls involuntary actions like heart rate, digestion, and respiratory rate.
IgG
IgA
IgM
IgE
ExplanationIgM is the first antibody isotype expressed by B cells during a primary immune response.
Concentrating urine
Reabsorption of water and solutes
Secretion of hydrogen ions
Filtration of blood
ExplanationThe majority of water, glucose, and electrolyte reabsorption happens in the proximal tubule.
Serotonin
Dopamine
Acetylcholine
GABA
ExplanationParkinson's is characterized by the degeneration of dopamine-producing neurons in the substantia nigra.
Type 1 Diabetes Mellitus
Type 2 Diabetes Mellitus
Diabetes Insipidus
Hyperthyroidism
ExplanationClassic symptoms of hyperglycemia at 55 suggest Type 2 Diabetes, as Type 1 usually presents in younger individuals.
Amoxicillin
Chloramphenicol
Vancomycin
Ciprofloxacin
ExplanationChloramphenicol toxicity in infants is caused by their inability to metabolize the drug efficiently.
Fever, headache, and stiff neck
Chest pain, cough, and fever
Abdominal pain, nausea, and vomiting
Fatigue, joint pain, and rash
ExplanationThe classic presentation of meningitis involves meningeal irritation leading to these three signs.
Chest X-ray
CT pulmonary angiography
Ultrasound
MRI
ExplanationCT angiography provides clear visualization of the pulmonary vasculature to identify clots.
Korsakoff syndrome
Wernicke encephalopathy
Delirium tremens
Hepatic encephalopathy
ExplanationThe triad of confusion, ataxia, and ophthalmoplegia is classic for Wernicke encephalopathy, caused by thiamine deficiency.
Labetalol
Methyldopa
Lisinopril
Nifedipine
ExplanationACE inhibitors like Lisinopril are teratogenic and contraindicated during pregnancy.
Streptococcus pneumoniae
Staphylococcus aureus
Mycoplasma pneumoniae
Haemophilus influenzae
ExplanationStreptococcus pneumoniae is consistently the most frequent bacterial pathogen in community-acquired pneumonia.
Elevated ferritin levels
Microcytic, hypochromic RBCs
Increased serum iron
Macrocytic RBCs
ExplanationIron deficiency leads to smaller, paler red blood cells due to impaired hemoglobin synthesis.
Protamine sulfate
Vitamin K
Heparin
Aspirin
ExplanationWarfarin acts as a Vitamin K antagonist, so administration of Vitamin K reverses its anticoagulation effect.
Antihistamines
Corticosteroids
Epinephrine
Oxygen
ExplanationEpinephrine is the first-line treatment for anaphylaxis due to its alpha and beta-adrenergic effects.
Auscultation
Shifting dullness
Direct inspection
Deep palpation
ExplanationShifting dullness is a clinical sign used to detect ascites, where the area of dullness to percussion changes when the patient turns to one side.
Administering IV antibiotics only
Initiating aggressive intravenous fluid resuscitation
Starting an oral diet
Waiting for blood culture results
ExplanationIn cases of septic shock, early aggressive fluid resuscitation is critical to restore tissue perfusion and stabilize the patient.
Resonance
Tympany
Dullness
Hyper-resonance
ExplanationThe solid nature of the liver produces a dull sound when percussed.
Asking yes/no questions
Using open-ended questions
Interrupting to clarify points
Suggesting possible diagnoses
ExplanationOpen-ended questions encourage patients to share their narrative and concerns fully.
Immediate cardioversion
Rate control with beta-blockers
IV fluids only
Surgical intervention
ExplanationIn stable atrial fibrillation, the priority is controlling the ventricular heart rate.
Biceps reflex
Patellar reflex
Achilles reflex
Triceps reflex
ExplanationThe patellar reflex primarily tests the integrity of the L4 spinal nerve root.
Oral antibiotics
Inhaled short-acting beta-agonists
Inhaled corticosteroids
Intravenous fluids
ExplanationShort-acting beta-agonists provide rapid bronchodilation to relieve acute airway obstruction.
Mini-Mental State Examination
Glasgow Coma Scale
Apgar score
BMI calculation
ExplanationThe MMSE is a validated tool for screening cognitive impairment.
Wait until the patient wakes up
Seek consent from a legal surrogate
Proceed with surgery immediately
Consult the hospital administrator
ExplanationIn emergencies where a patient lacks capacity, consent is obtained from the legal surrogate or healthcare proxy.
Sterilizing the floor
Proper hand hygiene
Wearing two pairs of gloves
Using antibiotics prophylactically
ExplanationHand hygiene is widely recognized as the single most effective way to prevent the spread of infections.
Check for pulse
Provide rescue breaths
Check for responsiveness and call for help
Begin chest compressions
ExplanationSafety and securing assistance are the foundational steps in the BLS algorithm.
Joint Volume Pressure
Jugular Venous Pressure
Jejunal Vital Pulse
Justified Vascular Procedure
ExplanationJVP is used to estimate central venous pressure during a cardiovascular assessment.
Perform the transfusion against their will
Respect the patient's autonomy and discuss alternatives
Ask the family to force the patient to agree
Discharge the patient immediately
ExplanationCompetent adult patients have the right to refuse medical treatment based on their personal or religious beliefs, even if it is life-saving.
Ignore it to avoid conflict
Report the concern to the appropriate supervisor or medical board
Confront the colleague privately and tell them to quit
Discuss the situation with other colleagues to spread the word
ExplanationPatient safety is the priority; reporting an impaired colleague is necessary to prevent potential harm to patients.
Tell the family immediately
Respect the patient's confidentiality
Ask the family to leave the room and then explain
Consult the hospital ethics committee
ExplanationConfidentiality is a fundamental duty; the physician must honor the patient's request unless harm is imminent.
Perform the procedure anyway
Respect the patient's autonomy
Seek a court order
Force the family to convince the patient
ExplanationCompetent patients have the legal and ethical right to refuse any medical treatment.
Protect doctors from malpractice when providing emergency care
Increase medical bill transparency
Mandate patient follow-ups
Ensure insurance coverage for everyone
ExplanationThese laws provide immunity from civil liability to those who offer emergency assistance in good faith.
Hide the error to prevent lawsuits
Blame a colleague
Disclose the error to the patient and apologize
Wait for the patient to notice before speaking
ExplanationTransparency and honesty are required by medical ethics codes following adverse events.
Accept the gift if it is small
Decline the gift as it poses a conflict of interest
Accept the gift but donate it to charity
Accept the gift only if you already use the drug
ExplanationGifts from pharmaceutical companies can bias clinical judgment and are discouraged or banned.
Beneficence
Autonomy
Non-maleficence
Justice
ExplanationNon-maleficence requires physicians to minimize harm to their patients.
Autonomy
Beneficence
Justice
Fidelity
ExplanationInformed consent is the practical application of respecting a participant's autonomy.
Autonomy
Justice
Beneficence
Non-maleficence
ExplanationJustice refers to the fair and equitable allocation of health resources.
Discuss it with the parents
Wait for more evidence
Mandatory reporting to authorities
Keep it confidential
ExplanationPhysicians are mandatory reporters of suspected child abuse.
The distribution of assets after death
The patient's preferences for end-of-life care
The appointment of a primary doctor
Insurance coverage details
ExplanationA living will documents a patient's wishes regarding medical treatment when they are no longer able to express them.
Yes, it is always encouraged
Generally discouraged due to lack of objectivity
Only if they have insurance
Only for emergency situations
ExplanationProfessional boundaries are difficult to maintain when treating close family members.
To protect the physician from lawsuits
To ensure the patient understands the risks, benefits, and alternatives
To allow the patient to ask for a refund
To document the patient's financial status
ExplanationInformed consent ensures that the patient makes a decision based on all necessary information.
Frequently Asked Questions
Are these Medical Licensure MCQs free?
Yes. Every Medical Licensure MCQ on this page is free to practice, including the correct answer and explanation.
Do these include past-paper questions?
Yes — questions sourced from past papers are clearly marked with a "Past Paper" badge, alongside fresh practice questions.
Which exams do these Medical Licensure MCQs help with?
They are aimed at FSMB / NBME and related Pakistani competitive exams that test Medical Licensure.
How should I practice subject-wise MCQs?
Attempt each question first, then reveal the answer and read the explanation. Short, focused sessions on one subject work better than long unstructured reading.