| Q051 | QCMA | Quality Control Material Assessment | Ensures lab test accuracy. | Used in hematology labs. |
| Q052 | QD | Quaque Die | Once daily. | Prescribed medication. |
| Q053 | QID | Quarter In Die | Four times a day. | Antibiotic schedule. |
| Q054 | QS | Quantum Sufficit | As much as sufficient. | Used in prescription compounding. |
| Q055 | QRS | QRS Complex | ECG feature representing ventricular depolarization. | Abnormal in bundle branch block. |
| Q056 | QT | QT Interval | ECG measure of ventricular repolarization. | Prolonged in certain drugs. |
| Q057 | QTc | Corrected QT Interval | QT interval adjusted for heart rate. | Monitors arrhythmia risk. |
| Q058 | QTcB | Bazett’s Corrected QT | QT corrected using Bazett formula. | Cardiology monitoring. |
| Q059 | QTcF | Fridericia Corrected QT | QT correction formula. | ECG interpretation. |
| Q060 | Q-T Disp | QT Dispersion | Difference between max & min QT on ECG. | Indicates arrhythmia risk. |
| Q061 | Q-wave | Pathologic Q Wave | ECG indicator of prior MI. | Found in old infarcts. |
| Q062 | QALY | Quality-Adjusted Life Year | Combines quantity and quality of life. | Cost-effectiveness studies. |
| Q063 | QOL | Quality of Life | Patient well-being measure. | Cancer patient assessment. |
| Q064 | QOL-AD | Quality of Life in Alzheimer’s Disease | Assessment tool. | Evaluates dementia patient well-being. |
| Q065 | QRS Axis | QRS Electrical Axis | Direction of ventricular depolarization. | Evaluated in ECG. |
| Q066 | QRS Duration | Time for ventricular depolarization | Prolonged in bundle branch block. | ECG interpretation. |
| Q067 | QRS Morphology | QRS Shape on ECG | Indicates conduction abnormalities. | Bundle branch block detection. |
| Q068 | QTT | Quantitative Thrombin Test | Clotting assessment. | Monitors anticoagulation therapy. |
| Q069 | Qp | Pulmonary Flow | Blood flow through lungs. | Echocardiography measurement. |
| Q070 | Qs | Systemic Flow | Blood flow through systemic circulation. | Cardiac catheterization. |
| Q071 | Qp/Qs | Pulmonary-to-Systemic Flow Ratio | Shunt assessment in heart disease. | Evaluates ASD/VSD. |
| Q072 | Qs/Qp Ratio | Shunt Ratio | Pulmonary/systemic flow ratio. | Cardiac evaluation. |
| Q073 | QF | Quadriceps Femoris | Thigh muscle. | Strength test post-injury. |
| Q074 | QUAD | Quadriceps | Thigh muscle group. | Muscle strength assessment. |
| Q075 | QFP | Quaternary Prevention | Avoiding overmedicalization. | Health policy planning. |
| Q076 | QAF | Quadriceps Angle Flexion | Knee alignment measure. | Evaluated in sports medicine. |
| Q077 | QL | Quadratus Lumborum | Core back muscle. | Regional anesthesia injection site. |
| Q078 | QP / QS | Pulmonary-to-Systemic Flow | Cardiac shunt ratio. | ASD assessment. |
| Q079 | QT Prolong | QT Interval Prolongation | Increased QT duration. | Risk factor for torsades de pointes. |
| Q080 | QTc Interval | Corrected QT | Adjusted QT for heart rate. | Cardiovascular risk assessment. |
| Q081 | QSOFA | Quick Sequential Organ Failure Assessment | Sepsis assessment tool. | Predicts mortality in infection. |
| Q082 | Q-T Dispersion | ECG QT Variation | Arrhythmia risk assessment. | Cardiologic monitoring. |
| Q083 | Q-tip Test | Urethral or Vaginal Mobility Test | Tests pelvic floor support. | Assesses urethral hypermobility. |
| Q084 | Qm | Minute Ventilation | Volume of air breathed per minute. | ICU ventilator setting. |
| Q085 | QSP | Quality Systems Program | Ensures compliance with standards. | Hospital QA program. |
| Q086 | QSEN | Quality and Safety Education for Nurses | Nursing education initiative. | Patient safety training. |
| Q087 | QSEN Competency | Quality & Safety in Nursing | Nursing skill framework. | Focuses on patient safety. |
| Q088 | QUAD Scan | Quadrant Ultrasound Scan | Imaging technique dividing organs into quadrants. | Abdominal ultrasound. |
| Q089 | QF | Quadriceps | Thigh muscle group. | Muscle assessment. |
| Q090 | QP | Quiescent Period | Period of inactivity in cardiac cycle. | Used in imaging studies. |
| Q091 | QAF | Quadriceps Angle Flexion | Knee alignment measure. | Sports medicine assessment. |
| Q092 | QH | Quaque Hora | Every hour. | Medication dosing schedule. |
| Q093 | QHS | Quaque Hora Somni | Every night at bedtime. | Sleep medications. |
| Q094 | QID | Quarter In Die | Four times daily. | Prescribed antibiotics. |
| Q095 | QRSA | QRS Axis | Ventricular conduction direction on ECG. | Detects LBBB/RBBB. |
| Q096 | QI | Quality Improvement | Process to improve healthcare delivery. | Reducing hospital infections. |
| Q097 | QL | Quadratus Lumborum | Back muscle. | Regional anesthesia site. |
| Q098 | QM | Quantitative Measurement | Numeric assessment in labs. | Blood glucose readings. |
| Q099 | Qmax | Maximum Urine Flow | Urological parameter. | Measured in uroflowmetry. |
| Q100 | Qmin | Minimum Urine Flow | Urological parameter. | Urodynamic testing. |
| Q101 | QP | Pulmonary Blood Flow | Volume of blood through lungs. | Congenital heart disease evaluation. |
| Q102 | QS | Systemic Blood Flow | Blood through systemic circulation. | Cardiac output calculation. |
| Q103 | Q-T Disp | QT Interval Dispersion | Arrhythmia risk measure. | ECG assessment. |
| Q104 | QALY | Quality-Adjusted Life Year | Combines quality & quantity of life. | Cost-effectiveness studies. |
| Q105 | QOL | Quality of Life | Patient-centered health measure. | Chronic illness evaluation. |
| Q106 | QOL-AD | Quality of Life in Alzheimer’s Disease | Assessment scale. | Dementia patient care. |
| Q107 | QRSA | QRS Axis | ECG marker. | Detects conduction abnormalities. |
| Q108 | QRS Duration | Time of ventricular depolarization | Prolonged in cardiac conduction defects. | ECG interpretation. |
| Q109 | QRS Morphology | Shape of QRS on ECG | Identifies abnormal conduction. | Bundle branch block. |
| Q110 | QT | QT Interval | Ventricular repolarization measure. | Prolonged in hypokalemia. |
| Q111 | QTc | Corrected QT Interval | Adjusted for heart rate. | Risk for arrhythmia. |
| Q112 | QTcB | Bazett Correction | QTc using Bazett formula. | ECG monitoring. |
| Q113 | QTcF | Fridericia Correction | QTc using Fridericia formula. | Cardiology assessment. |
| Q114 | Q-wave | Pathologic Q Wave | Indicates prior MI. | ECG finding. |
| Q115 | Qtip Test | Pelvic floor assessment | Vaginal/urethral mobility test. | Urology/gynecology exam. |
| Q116 | Qmax | Maximum Urine Flow | Urology test. | Assesses bladder function. |
| Q117 | Qmin | Minimum Urine Flow | Urological measurement. | Urodynamic studies. |
| Q118 | QHS | Every Night | Latin: Quaque Hora Somni. | Medication dosing. |
| Q119 | QH | Every Hour | Latin: Quaque Hora. | Frequent dosing. |
| Q120 | QD | Once Daily | Latin: Quaque Die. | Prescribed medications. |
| Q121 | QID | Four Times Daily | Latin: Quarter In Die. | Antibiotic regimen. |
| Q122 | QS | Quantum Sufficit | As much as sufficient. | Prescription compounding. |
| Q123 | QRSA | QRS Axis | ECG marker of ventricular conduction. | LBBB/RBBB detection. |
| Q124 | Qp/Qs | Pulmonary-to-Systemic Flow Ratio | Shunt assessment in congenital heart disease. | ASD evaluation. |
| Q125 | QSP | Quality Systems Program | Ensures compliance with standards. | Lab QA. |
| Q126 | QSEN | Quality and Safety Education for Nurses | Nursing initiative. | Patient safety training. |
| Q127 | QSEN Competency | Nursing skill framework | Focus on patient safety. | Nursing curriculum. |
| Q128 | QFP | Quaternary Prevention | Avoiding overmedicalization. | Preventive medicine. |
| Q129 | QAF | Quadriceps Angle Flexion | Knee alignment measurement. | Sports medicine. |
| Q130 | QL | Quadratus Lumborum | Core muscle. | Regional anesthesia. |
| Q131 | QUAD | Quadriceps | Thigh muscle group. | Muscle strength assessment. |
| Q132 | QF | Quadriceps Femoris | Thigh muscle. | Physical exam. |
| Q133 | Qm | Minute Ventilation | Air volume per minute. | ICU ventilator setting. |
| Q134 | QTT | Quantitative Thrombin Test | Coagulation assessment. | Anticoagulation monitoring. |
| Q135 | QP / QS | Pulmonary-to-Systemic Flow | Shunt ratio. | ASD/VSD evaluation. |
| Q136 | QP | Pulmonary Flow | Blood flow through lungs. | Echocardiography. |
| Q137 | QS | Systemic Flow | Blood flow through systemic circulation. | Cardiac output. |
| Q138 | Qmax | Maximum Urine Flow | Urodynamics. | Bladder function assessment. |
| Q139 | Qmin | Minimum Urine Flow | Urological measure. | Urodynamic study. |
| Q140 | QALY Gain | Quality-Adjusted Life Year Gain | Treatment benefit measure. | Oncology therapy evaluation. |
| Q141 | QOL-AD | Quality of Life Alzheimer’s | Dementia assessment tool. | Patient follow-up. |
| Q142 | QRSA | QRS Axis | ECG conduction axis. | LBBB detection. |
| Q143 | QRS Duration | Ventricular depolarization time | ECG measurement. | Bundle branch block evaluation. |
| Q144 | QRS Morphology | Shape of QRS | Detects abnormal conduction. | ECG assessment. |
| Q145 | QT Prolong | QT Interval Prolongation | Arrhythmia risk marker. | Drug monitoring. |
| Q146 | QTc | Corrected QT Interval | Heart rate-adjusted QT. | Cardiologic assessment. |
| Q147 | QTcB | Bazett Correction | QTc formula. | ECG monitoring. |
| Q148 | QTcF | Fridericia Correction | QTc formula. | ECG interpretation. |
| Q149 | Q-wave MI | Pathologic Q Wave Infarction | ECG marker of MI. | Diagnosis of past MI. |
| Q150 | Q-tip Test | Pelvic floor mobility | Vaginal/urethral assessment. | Urology exam. |
| Q151 | QD | Once Daily | Medication schedule. | Prescribed drugs. |
| Q152 | QID | Four Times Daily | Latin: Quarter In Die. | Antibiotic dosing. |
| Q153 | QS | Quantum Sufficit | As much as needed. | Prescription compounding. |
| Q154 | QH | Every Hour | Medication schedule. | Frequent dosing. |
| Q155 | QHS | Every Night | Latin: Quaque Hora Somni. | Bedtime meds. |
| Q156 | Qm | Minute Ventilation | Air per minute. | ICU monitoring. |
| Q157 | QTT | Quantitative Thrombin Test | Coagulation test. | Anticoagulant therapy. |
| Q158 | Qp/Qs | Pulmonary-to-Systemic Flow Ratio | Heart shunt assessment. | ASD/VSD evaluation. |
| Q159 | QP | Pulmonary Flow | Blood through lungs. | Echocardiography. |
| Q160 | QS | Systemic Flow | Blood through body. | Cardiac output. |
| Q161 | QALY | Quality-Adjusted Life Year | Measure of treatment benefit. | Cost-effectiveness studies. |
| Q162 | QOL | Quality of Life | Patient health & well-being. | Chronic illness evaluation. |
| Q163 | QOL-AD | Quality of Life Alzheimer’s | Dementia patient tool. | Follow-up assessment. |
| Q164 | QRS Axis | Ventricular conduction axis | ECG marker. | Detects conduction defects. |
| Q165 | QRS Duration | Ventricular depolarization time | ECG measure. | Bundle branch block. |
| Q166 | QRS Morphology | ECG shape | Detects conduction abnormalities. | LBBB/RBBB. |
| Q167 | QT | QT Interval | Ventricular repolarization | ECG measurement. |
| Q168 | QTc | Corrected QT | Heart rate-adjusted QT | Arrhythmia monitoring. |
| Q169 | QTcB | Bazett Correction | QTc formula | Cardiology. |
| Q170 | QTcF | Fridericia Correction | QTc formula | ECG monitoring. |
| Q171 | Q-wave | Pathologic Q | Past MI marker | ECG diagnosis. |
| Q172 | Q-tip Test | Pelvic floor test | Vaginal/urethral mobility | Urology/gynecology exam. |
| Q173 | QUAD | Quadriceps | Thigh muscle group | Muscle strength exam. |
| Q174 | QF | Quadriceps Femoris | Thigh muscle | Strength assessment. |
| Q175 | QL | Quadratus Lumborum | Core muscle | Regional anesthesia. |
| Q176 | QFP | Quaternary Prevention | Avoids overmedicalization | Preventive medicine. |
| Q177 | QAF | Quadriceps Angle Flexion | Knee alignment | Sports medicine. |
| Q178 | QSP | Quality Systems Program | Ensures lab/hospital standards | QA program. |
| Q179 | QSEN | Quality & Safety in Nursing | Nursing initiative | Patient safety training. |
| Q180 | QSEN Competency | Nursing skill framework | Focus on patient safety | Curriculum. |
| Q181 | Qm | Minute Ventilation | Air per minute | ICU ventilator. |
| Q182 | QTT | Quantitative Thrombin Test | Coagulation assessment | Anticoagulation monitoring. |
| Q183 | Qmax | Maximum Urine Flow | Urology parameter | Uroflowmetry. |
| Q184 | Qmin | Minimum Urine Flow | Urology parameter | Urodynamics. |
| Q185 | QALY Gain | Treatment benefit measure | Quality-adjusted life year gain | Oncology evaluation. |
| Q186 | QP / QS | Pulmonary/Systemic Flow | Shunt assessment | ASD/VSD. |
| Q187 | QRSA | QRS Axis | ECG ventricular conduction | LBBB detection. |
| Q188 | QT Prolong | QT Interval Prolongation | Arrhythmia risk | Drug monitoring. |
| Q189 | QTc Interval | Corrected QT | Adjusted for heart rate | Cardiologic assessment. |
| Q190 | Qwave MI | ECG marker of MI | Pathologic Q wave | Diagnosis of past MI. |
| Q191 | Q-tip Test | Pelvic floor mobility | Vaginal/urethral assessment | Gynecology exam. |
| Q192 | QD | Once Daily | Medication schedule | Prescribed drugs. |
| Q193 | QID | Four Times Daily | Latin: Quarter In Die | Antibiotic regimen. |
| Q194 | QS | Quantum Sufficit | As much as sufficient | Prescription compounding. |
| Q195 | QH | Every Hour | Medication dosing | Frequent schedule. |
| Q196 | QHS | Every Night | Latin: Quaque Hora Somni | Bedtime medication. |
| Q197 | Qm | Minute Ventilation | Volume per minute | ICU monitoring. |
| Q198 | QTT | Quantitative Thrombin Test | Clotting test | Anticoagulation therapy. |
| Q199 | QP | Pulmonary Flow | Blood through lungs | Echocardiography. |
| Q200 | QS | Systemic Flow | Blood through systemic circulation | Cardiac output measurement. |