AMC CAT MCQ study materials
AMC CAT MCQ study resources

AMC CAT MCQ key terms

AMC CAT MCQ · Get comfortable with the vocabulary.

Tocolytic

A medicine that relaxes the uterus to slow or stop preterm labour, buying time for steroids or transfer. Examples include nifedipine and atosiban; monitoring for maternal and fetal effects is required.

Related: Antenatal corticosteroid, Pre-eclampsia
Antenatal corticosteroid

An injection of betamethasone or dexamethasone given to a mother at risk of preterm birth to mature the fetal lungs and reduce neonatal respiratory distress, intraventricular haemorrhage and mortality.

Related: Tocolytic, Respiratory distress syndrome
Pre-eclampsia

A pregnancy disorder after 20 weeks marked by new hypertension plus proteinuria or organ dysfunction such as renal, liver, neurological or haematological involvement. It can progress to seizures and requires close monitoring and timely delivery.

Related: Eclampsia, HELLP syndrome
Eclampsia

The occurrence of generalised seizures in a woman with pre-eclampsia, without another cause. It is an obstetric emergency needing airway support, magnesium sulfate and delivery planning.

Related: Pre-eclampsia, Magnesium sulfate
Magnesium sulfate

A medicine used to prevent or treat eclamptic seizures and to provide fetal neuroprotection in very preterm birth. Toxicity can cause loss of reflexes, respiratory depression and cardiac arrest, so monitoring is essential.

Related: Eclampsia
HELLP syndrome

A severe pregnancy complication with haemolysis, elevated liver enzymes and low platelets, often with right upper quadrant pain and hypertension. It threatens mother and fetus and usually requires urgent delivery.

Related: Pre-eclampsia
Postpartum haemorrhage

Excessive bleeding after childbirth, commonly defined as more than 500 mL after vaginal birth or 1000 mL after caesarean, or any bleeding causing haemodynamic compromise. Causes are grouped as tone, trauma, tissue and thrombin.

Related: Uterine atony, Retained placenta
Uterine atony

Failure of the uterus to contract firmly after delivery, causing heavy bleeding from the placental site. It is the commonest cause of postpartum haemorrhage and is managed with massage and uterotonic drugs.

Related: Postpartum haemorrhage, Ergometrine
Ergometrine

A uterotonic drug that causes sustained uterine contraction to treat or prevent postpartum haemorrhage. It is avoided in hypertension because it raises blood pressure and can cause nausea and vomiting.

Related: Uterine atony
Retained placenta

Failure of the placenta to deliver completely after the baby, leaving fragments or the whole organ inside the uterus. It causes bleeding and infection and often needs manual removal or surgical evacuation.

Related: Postpartum haemorrhage, Endometritis
Ectopic pregnancy

Implantation of a pregnancy outside the uterine cavity, most often in a fallopian tube. It can rupture and cause life-threatening internal bleeding; presentation includes pain, amenorrhoea and sometimes shoulder-tip pain.

Related: Methotrexate, Beta-hCG
Methotrexate

A folate antagonist used in selected stable, early ectopic pregnancies to stop trophoblast growth, and in some gynaecological and rheumatological conditions. It is teratogenic and requires careful patient selection and follow-up.

Related: Ectopic pregnancy, Beta-hCG
Beta-hCG

Human chorionic gonadotropin, a hormone produced by trophoblast tissue. Blood levels support diagnosis and monitoring of pregnancy, ectopic pregnancy and gestational trophoblastic disease; serial trends are more informative than single values.

Related: Ectopic pregnancy, Molar pregnancy
Molar pregnancy

An abnormal conception with overgrowth of trophoblast tissue, either complete or partial, causing very high beta-hCG, bleeding and a uterus larger than expected. It needs evacuation and follow-up for persistent trophoblastic disease.

Related: Beta-hCG
Ovarian torsion

Twisting of the ovary and its blood supply on the pedicle, causing sudden severe unilateral pelvic pain, nausea and tenderness. It is a surgical emergency because delay leads to ovarian loss.

Related: Pelvic inflammatory disease
Pelvic inflammatory disease

Infection of the upper female genital tract, often from sexually transmitted organisms, causing pelvic pain, discharge and fever. It can lead to infertility, ectopic pregnancy and chronic pain, so early antibiotics are important.

Related: Ovarian torsion, Ectopic pregnancy
Endometriosis

Presence of endometrial-like tissue outside the uterine cavity, causing cyclical pelvic pain, painful periods, deep dyspareunia and sometimes subfertility. Diagnosis is clinical and may be confirmed surgically.

Related: Dysmenorrhoea
Dysmenorrhoea

Painful menstruation, either primary cramps without pelvic disease or secondary pain from conditions such as endometriosis or fibroids. Treatment includes anti-inflammatory drugs and hormonal suppression.

Related: Endometriosis
Fibroid

A benign smooth-muscle tumour of the uterus, also called a leiomyoma. It may cause heavy bleeding, pressure symptoms or subfertility, and treatment ranges from observation to surgery.

Related: Menorrhagia
Menorrhagia

Abnormally heavy or prolonged menstrual bleeding that interferes with daily life or causes anaemia. Causes include fibroids, hormonal imbalance and clotting disorders; assessment looks for structural and non-structural causes.

Related: Fibroid
Prolonged rupture of membranes

Rupture of the fetal membranes more than 18 to 24 hours before labour begins. It raises the risk of maternal and neonatal infection, so monitoring for fever and fetal wellbeing is needed and antibiotics may be given.

Related: Chorioamnionitis, Neonatal sepsis
Chorioamnionitis

Infection of the membranes and amniotic fluid, often with maternal fever, uterine tenderness, foul discharge and fetal tachycardia. It requires antibiotics and usually prompt delivery to protect mother and baby.

Related: Prolonged rupture of membranes, Neonatal sepsis
Shoulder dystocia

Failure of the shoulders to deliver after the head in vaginal birth, needing specific manoeuvres and often causing brachial plexus injury or fracture. It is an obstetric emergency associated with diabetes and macrosomia.

Related: Macrosomia, Erb palsy
Macrosomia

Excessive fetal size, often defined as birth weight above about 4 to 4.5 kg. It increases the risk of prolonged labour, shoulder dystocia and birth trauma, and is linked to maternal diabetes.

Related: Shoulder dystocia, Gestational diabetes
Gestational diabetes

Glucose intolerance first recognised during pregnancy, usually detected by screening tests. It increases risks of macrosomia, pre-eclampsia and neonatal hypoglycaemia, and is managed with diet, monitoring and sometimes insulin.

Related: Macrosomia, Pre-eclampsia
Placenta praevia

Placement of the placenta over or very near the internal cervical os. It causes painless vaginal bleeding in later pregnancy and makes vaginal delivery unsafe, so caesarean delivery is usually planned.

Related: Placental abruption
Placental abruption

Premature separation of a normally placed placenta before birth, causing painful vaginal bleeding, a tense uterus and fetal distress. It can lead to maternal shock and fetal death and needs urgent obstetric care.

Related: Placenta praevia
Apgar score

A rapid assessment at one and five minutes after birth scoring appearance, pulse, grimace, activity and respiration from 0 to 2 each. It guides resuscitation needs but does not alone diagnose asphyxia.

Related: Neonatal resuscitation, Respiratory distress syndrome
Neonatal resuscitation

A structured approach to a newborn who is not breathing or is in poor condition, starting with warmth, drying, positioning and airway assessment, then ventilation and, if needed, chest compressions and drugs.

Related: Apgar score, Neonatal jaundice
Neonatal jaundice

Yellowing of the skin and eyes from raised bilirubin in the first weeks of life. It is common and often benign but can be severe, causing kernicterus, so risk factors and bilirubin levels are checked.

Related: Kernicterus, Phototherapy
Kernicterus

Permanent brain damage caused by very high unconjugated bilirubin crossing into the neonatal brain. It can cause lethargy, poor feeding, abnormal tone and later hearing loss or cerebral palsy, so jaundice is monitored closely.

Related: Neonatal jaundice, Phototherapy
Phototherapy

Treatment of neonatal jaundice using blue light that converts bilirubin in the skin into forms the baby can excrete. Eyes are protected and hydration monitored; exchange transfusion is used for severe cases.

Related: Neonatal jaundice, Kernicterus
Respiratory distress syndrome

Breathing difficulty in premature newborns caused by insufficient surfactant, leading to grunting, retractions and low oxygen. Antenatal steroids and surfactant replacement reduce severity.

Related: Antenatal corticosteroid, Apgar score
Neonatal sepsis

A serious bacterial infection in the first month of life, with signs such as poor feeding, lethargy, temperature instability and breathing difficulty. It can progress rapidly, so early antibiotics are given after cultures.

Related: Prolonged rupture of membranes, Chorioamnionitis
Erb palsy

Weakness of the upper arm from injury to the upper brachial plexus during difficult birth, typically after shoulder dystocia. The arm lies internally rotated and recovery is often partial but needs review.

Related: Shoulder dystocia
Kawasaki disease

A childhood vasculitis with fever lasting days, red eyes, cracked lips, rash, swollen neck glands and peeling skin. It can damage coronary arteries, so prompt immunoglobulin and aspirin are given.

Related: Febrile convulsion
Febrile convulsion

A seizure in a child aged roughly six months to five years triggered by fever without brain infection. Most are brief and benign, but the child is assessed for the cause of fever and for red flags.

Related: Kawasaki disease
Intussusception

Telescoping of one part of bowel into another, usually near the ileocaecal junction, causing colicky pain, vomiting and redcurrant-jelly stool. Early air or contrast enema can reduce it.

Related: Pyloric stenosis
Pyloric stenosis

Thickening of the pyloric muscle in young infants causing forceful projectile vomiting, hunger and dehydration with a palpable olive-shaped mass. It is corrected by fluid resuscitation then surgical division of the muscle.

Related: Intussusception
Appendicitis

Inflammation of the appendix causing central pain that moves to the right lower abdomen, with anorexia, nausea and tenderness. Delay risks perforation, so surgical assessment is urgent.

Related: Peritonitis
Peritonitis

Inflammation of the peritoneal lining, causing severe abdominal pain, rigidity and rebound tenderness. It may follow perforation or infection and often needs urgent surgery and antibiotics.

Related: Appendicitis
Bowel obstruction

Blockage of the intestine causing colicky abdominal pain, vomiting, distension and failure to pass stool or gas. Causes include adhesions and hernia; management involves fluids, decompression and sometimes surgery.

Related: Peritonitis
Cholecystitis

Inflammation of the gallbladder, usually from a blocked cystic duct, causing right upper abdominal pain, fever and tenderness. It is managed with antibiotics, analgesia and often cholecystectomy.

Related: Cholangitis
Cholangitis

Infection of the bile ducts, often with fever, jaundice and right upper quadrant pain. It can cause septic shock and requires antibiotics plus urgent drainage of the obstructed duct.

Related: Cholecystitis
Volvulus

Twisting of a loop of bowel around its mesentery, cutting off blood supply and causing obstruction. It presents with severe pain, vomiting and distension and needs urgent surgical correction.

Related: Bowel obstruction
Hernia

Protrusion of an organ or tissue through a weakness in the body wall, such as the groin. It may strangulate, causing severe pain and ischaemia, which is a surgical emergency.

Related: Bowel obstruction
Sepsis

Life-threatening organ dysfunction caused by a dysregulated response to infection. It requires early recognition, cultures, antibiotics and fluid resuscitation, and can complicate any medical or surgical condition.

Related: Septic shock, Pneumonia
Septic shock

Sepsis with persistent low blood pressure and inadequate tissue perfusion despite fluid resuscitation. It needs urgent antibiotics, fluids and vasopressor support in a high-dependency setting.

Related: Sepsis
Pneumonia

Infection of the lung tissue causing fever, cough, breathlessness and crackles, with chest X-ray changes. Severity scoring guides whether treatment is at home or in hospital.

Related: Sepsis
Myocardial infarction

Death of heart muscle from blocked coronary blood flow, causing chest pain, sweating and sometimes collapse, with raised troponin and ECG changes. Prompt reperfusion reduces damage.

Related: Atrial fibrillation
Atrial fibrillation

An irregularly irregular fast heart rhythm from chaotic atrial activity, increasing stroke risk and causing palpitations or breathlessness. Management includes rate control and anticoagulation when indicated.

Related: Myocardial infarction, Stroke
Stroke

Sudden neurological deficit from interrupted blood flow or bleeding in the brain. Rapid assessment and imaging are needed because time-critical treatment can reduce disability.

Related: Atrial fibrillation
Diabetic ketoacidosis

A serious complication of diabetes with high glucose, ketones and metabolic acidosis, causing vomiting, dehydration and deep breathing. It needs fluids, insulin and careful potassium replacement.

Related: Sepsis
Acute kidney injury

A rapid fall in kidney function with rising creatinine or reduced urine output. Causes are grouped as pre-renal, renal and post-renal, and management focuses on fluids, stopping harmful drugs and relieving obstruction.

Related: Sepsis
Hyperkalaemia

A raised blood potassium level that can cause dangerous heart rhythm disturbance and muscle weakness. It is treated urgently with cardiac protection, shifting potassium into cells and removing it from the body.

Related: Acute kidney injury