Articles & Guides
Calculator explanations, research methods and medical-learning articles from AchaWaqat.
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TIMI Risk Score for Unstable Angina and NSTEMI
Learn how the TIMI risk score estimates 14-day cardiac risk in unstable angina and NSTEMI, including criteria, interpretation, uses, and limits.
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APGAR Score Explained: Newborn Assessment and Interpretation
Learn how the APGAR score assesses a newborn at 1 and 5 minutes, how each component is scored, what the results mean, and its…
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Bishop Score Explained: Assessing Readiness for Labor Induction
Learn how the Bishop score assesses cervical readiness for labor induction, how it is calculated, and why clinical context still matters.
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PHQ-9 Depression Test: Scoring and Interpretation
Learn how the PHQ-9 depression test is scored, what each severity range means, and why clinical assessment remains essential for interpretation.
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GAD-7 Anxiety Test: Scoring and Interpretation
Learn how the GAD-7 anxiety test is scored, what each severity range means, its clinical limitations, and when professional assessment is appropriate.
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BMI Calculator: Formula, Categories, and Limitations
Learn how BMI is calculated, understand adult weight categories, review worked examples, and recognise when BMI may give a misleading result.
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Ideal Body Weight: Formulas, Uses, and Limitations
Learn how ideal body weight is calculated using common formulas, where clinicians use it, and why it should not be treated as a personal…
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MELD Score Explained: Assessing Liver Disease Severity
Learn how the MELD score estimates short-term mortality in advanced liver disease and supports liver transplant prioritization and clinical decisions.
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Glasgow Coma Scale: Scoring and Interpretation
Learn how the Glasgow Coma Scale scores eye, verbal, and motor responses, how totals are interpreted, and which limitations affect clinical use.