Glossary 499
MSU midstream urine
MTP metatarsophalangeal
Mu megaunit
Na sodium
NAA nucleic acid amplification
NAC N-acetylcysteine
NAI non-accidental injury
NAIR National Arrangements for Incidents involving Radioactivity
NAPCAN National Association for Prevention of Child Abuse and Neglect
NGT nasogastric tube
NIV non-invasive ventilation
NMS neuroleptic malignant syndrome
NPA nasopharyngeal aspirate
NSAID non-steroidal anti-inf lammatory drug
NSPCC National Society for the Prevention of Cruelty to Children
NSTEMI non-ST elevation myocardial infarction
NTS nose/throat swab
NZ New Zealand
O&G obstetrics and gynaecology
OM occipitomental
OPG orthopantomogram
ORS oral rehydration solution
p.r. per rectum
PaCO 2 partial pressure of carbon dioxide (arterial)
PaO 2 partial pressure of oxygen (arterial)
PCI percutaneous coronary intervention (coronary angioplasty)
PCP Pneumocystis carinii pneumonia
PCR polymerase chain reaction
PCV packed cell volume
PE pulmonary embolus
PEA pulseless electrical activity
PEF peak expiratory f low
PEP post-exposure prophylaxis
PGL persistent generalized lymphadenopathy
pH negative logarithm of the hydrogen ion concentration
PID pelvic inf lammatory disease
PMR polymyalgia rheumatica
PND paroxysmal nocturnal dyspnoea
PPE personal protective equipment
PTA post-traumatic amnesia
PTI prothrombin index
q.d.s. quater in die sumendus (four times daily)
RAPD relative afferent pupil defect (Marcus Gunn pupil)
RBBB right bundle branch block