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Potassium daily requirement

The elements essential for life can be divided into macroelements (daily requirement > 100 mg) and microelements (daily requirement < 100 mg). The macroelements include the electrolytes sodium (Na), potassium (K), calcium (Ca), and magnesium (Mg), and the nonmetals chlorine (Cl), phosphorus (P), sulfur (S), and iodine (I). [Pg.362]

Minerals include sodium, potassium, calcium, phosphorus, magnesium, manganese, sulphur, cobalt and chlorine trace minerals include iron, zinc, copper, selenium, iodine, fluorine and chromium. Their roles may be generalised within the areas of providing structure in the formation of bones and teeth, maintenance of normal heart rhythm, muscle contractility, neural conductivity, acid-base balance and the regulation of cellular metabolism through their activ-ity/structural associations with enzymes and hormones. The daily requirements of minerals can be obtained from a well-balanced diet. [Pg.29]

Kiwifruit are also a rich dietary source of potassium. Dietary potassium has been associated with prevention of hypertension, apoplexy, and osteoporosis. An average-sized Hayward fruit contains 200-300 mg potassium, which supplies about 10-15% of the daily requirement. [Pg.317]

Potassium is widely recognized as an essential element. In fact, our daily requirement for potassium is more than twice that for sodium. Because most foods contain potassium, serious deficiency of this element in humans is rare. However, potassium deficiency can be caused by kidney malfunction or by the use of certain diuretics. Potassium deficiency leads to muscle weakness, irregular heartbeat, and depression. [Pg.337]

The daily requirement of normal adults for iodine is given as lOO/rg. The body contains a total of 20-50 mg of iodine of which about 8 mg are found in the thyroid gland. It is now recommended that small amounts of iodine, as potassium iodide, should be added to cooking and table salt. This recommendation has never been adopted by the British Government, although experience elsewhere has shown that the addition of 20 parts per million is beneficial and has no harmful effects. [Pg.146]

Information about a food s potassium content is required on the nutrition facts panel only if the food contains added potassium as a nutrient or if claims about it as a nutrient appear on the label. In all other cases, it is voluntary. The recommended daily value for potassium is 3500 mg. The following labels have been designated for foods high potassium (700 mg or more per serving) good source of potassium (350—665 mg per serving) more or added potassium (at least 350 mg more per serving than the reference food) (43). [Pg.536]

The body s normal daily potassium requirement is 0.5 to 1 mEq/kg (0.5 to 1 mmol/kg) or 40 to 80 mEq (40 to 80 mmol) to maintain a serum potassium concentration of 3.5 to 5 mEq/L (3.5 to 5 mmol/L). Potassium is the most abundant cation in the ICF, balancing the sodium contained in the ECF and maintaining electroneutrality of bodily fluids. Because the majority of potassium is intracellular, serum potassium concentration is not a good measure of total body potassium however, clinical manifestations of potassium disorders correlate well with serum potassium. The acid-base balance of the body affects serum potassium concentrations. Hyperkalemia is routinely seen in... [Pg.410]

In patients with peritonitis, hypovolemia is often accompanied by acidosis, so large volumes of a solution such as lac-tated Ringers may be required initially to restore intravascular volume. Maintenance fluids should be instituted (after intravascular volume is restored) with 0.9% sodium chloride and potassium chloride (20 mEq/L) or 5% dextrose and 0.45% sodium chloride with potassium chloride (20 mEq/L). The administration rate should be based on estimated daily fluid loss through urine and nasogastric suction, including 0.5 to 1.0 L for insensible fluid loss. Potassium would not be included routinely if the patient is hyperkalemic or has renal insufficiency. Aggressive fluid therapy often must be continued in the postoperative period because fluid will continue to sequester in the peritoneal cavity, bowel wall, and lumen. [Pg.1133]

Electrolytes that are included routinely in PN admixtures include sodium, potassium, phosphorus (as phosphate), calcium, magnesium, chloride, and acetate. When determining electrolytes in PN admixtures, the patient s renal function always must be taken into account. Typical daily electrolyte maintenance requirements for adults with normal renal function are listed in Table 97-3. [Pg.1497]

Sunirinib (Sutent) [Kinase Inhibitor] Uses Advanced GI stromal tumor refractory/intolerant of imatinib advanced RCC Action Kinase inhibitor Dose Adults. 50 mg PO daily x 4 wk, followed by 2 wk holiday = 1 cycle 4- to 37.5 mg w/ CYP3A4 inhibitors (Table VI-8), to T 87.5 mg w/ CYP3A4 inducers Contra w/ atazanavir Caution [D, -] Multiple interactions require dose modification (eg, St. John s wort) Disp Caps SE -l WBC pit, bleeding, T BP, -l ejection fraction, T QT interval, pancreatitis, DVT, Sz, adrenal insuff, N/V/D, skin discoloration, oral ulcers, taste perversion, hypothyroidism Interactions Multiple interactions require dose modification (eg, St. John s wort) EMS Monitor ECG for T QT interval grapefruit juice may T adverse effects may affect potassium level (hypo-/hyperkalemia) monitor for S/Sxs of heart failure drug can 4- ejection fraction OD May cause abd pain, muscle weakness, and chills symptomatic and supportive... [Pg.293]

Urea and electrolytes Sodium, potassium, urea and creatinine require close daily monitoring. The aim is to normalise and to avoid, in particular, drops in electrolytes such as sodium and potassium due to diuretic therapy. Other electrolytes such as magnesium and calcium may need to be checked regularly. [Pg.42]

All patients with heart failure due to left ventricular systolic dysfunction must be initiated on an ACE inhibitor. This should be initiated as soon as the patient s acute symptoms have been controlled at the appropriate dose and then titrated up at short intervals to the target dose or maximum tolerated dose. A suitable agent would be ramipril 2.5 mg once daily, which then could be slowly titrated (e.g. approximately every two weeks) to the target of 10 mg once daily or 5 mg twice daily. Parameters that require regular monitoring are blood pressure, urea and electrolytes (particularly serum potassium) at drug initiation then every week and after each dose increase until stable. [Pg.43]

Saturated Potassium Iodide Solution Dissolve excess potassium iodide in freshly boiled water. Excess solid must remain. Store this solution in the dark. Test it daily by adding 0.5 mL to 30 mL of the Acetic Acid-Chloroform Solution, then add 2 drops of starch TS. If the solution turns blue, requiring more than 1 drop of 0.1 N sodium thiosulfate to discharge the color, prepare a fresh solution. [Pg.394]

To simplify these calculations, the capital cost of the instrument may be amortized over 5 or 6 years and maintenance costs ignored. The average daily cost can then be calculated and will be the same whether the instrument is used or not. Reagent costs are simple to calculate and are usually small in relation to other costs. Examples of labor and equipment costs of 5 commercial flame photometers, used to measure plasma sodium and potassium simultaneously, were given by Broughton and Dawson (B18). With small numbers of analyses, the least expensive instrument was the cheapest to run, but despite wide differences in capital outlay and labor requirements, the cost per analysis for the 5 instruments... [Pg.293]


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See also in sourсe #XX -- [ Pg.140 ]




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