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This image is a photograph of a page from a book displaying tables of normal values and unit conversions related to medical measurements. It is not possible to determine the location of Jalingo, Nigeria from this image. The page is divided into several sections: 1. **"Normal values"**: This is the main title of the page. 2. **"Metric measures, units and SI symbols"**: This section contains a table listing common physical quantities (Name), their SI units (SI unit), and their corresponding symbols (Symbol). Examples include Length (metre, m), Mass (kilogram, kg), Amount of substance (mole, mol), Pressure (pascal, Pa), and Energy (joule, J). 3. **"Hydrogen ion concentration (pH)"**: This section provides context for pH values, stating Neutral = 7, Acid = 0 to 7, and Alkaline = 7 to 14. 4. **"Normal pH of some body fluids"**: This table lists various body fluids and their normal pH ranges, such as Blood (7.35 to 7.45), Saliva (5.4 to 7.5), Gastric juice (1.5 to 3.5), Bile (6.0 to 8.5), and Urine (4.5 to 8.0). 5. **"Decimal multiples and submultiples of the units are formed by the used of standard prefixes"**: This section introduces prefixes used in the SI system. A table shows multiples (e.g., 10⁶, 10³, 10², 10¹), prefixes (mega, kilo, hecto, deca), their symbols (M, k, h, da), and submultiples (e.g., 10⁻¹, 10⁻², 10⁻³, 10⁻⁴, 10⁻⁹, 10⁻¹², 10⁻¹⁵) with their corresponding prefixes (deci, centi, milli, micro, nano, pico, femto) and symbols (d, c, m, µ, n, p, f). 6. **"Some normal plasma levels in adults"**: This table lists various substances (Calcium, Chloride, Cholesterol, Glucose, Fasting glucose, Potassium, Sodium, Urea) and their normal plasma concentrations in different units (mmol/l and mg/100 ml or mEq/l). 7. **"Conversion table for kPa/mmHg (for e.g. capillary pressures)"**: This section provides a conversion table between kilopascals (kPa) and millimeters of mercury (mmHg) for pressure measurements. 8. **"Arterial blood gases"**: This table lists arterial blood gas parameters (PO₂, PCO₂, Bicarbonate, H⁺ ions) and their normal ranges in kPa, mmHg, and mmol/l or pH units. The image shows the printed text clearly, with no people or active subjects present. The environment is that of a book page.
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