Potassium Chloride in Lactated Ringers and Dextrose

Uses

Calcium chloride is an ionic compound used for the treatment of hypocalcemia and hyperkalemia, and as an antidote to magnesium intoxication due to overdosage of magnesium sulfate.

For the treatment of hypocalcemia in those conditions requiring a prompt increase in blood plasma calcium levels, for the treatment of magnesium intoxication due to overdosage of magnesium sulfate, and used to combat the deleterious effects of hyperkalemia as measured by electrocardiographic (ECG), pending correction of the increased potassium level in the extracellular fluid.

Dextrose is administered as a parenteral nutrition solution in the treatment of carbohydrate depletion and hypoglycaemic coma. Because of its high dextrose content it is used in the treatment of cerebral edema, shock, circulatory collapse, unconsciousness and to correct hyperkalaemia with or without insulin.

Potassium chloride is used for drug induced hypokalemia, liver cirrhosis, nausea, vomiting, cholera, diarrhoea, muscular weakness, paralysis, cardiac and congestive heart failure, diabetic ketoacidosis, ulcerative colitis, weakness, anorexia, drowsiness, Cushing's syndrome, pyloric stenosis, low blood pressure etc.

Sodium Chloride Nasal Drops is used for dry nasal membranes including dry nose resulting from cold and allergy medications. It moistens dry nasal passages from dry climates or from airplane travel, may help dissolve mucus from study noses and clears the nose after surgery. This sterile saline solution is also used to cleanse various parts of the body (wounds, body cavities) and medical equipment (e.g., bandages, catheters, drainage tubes). It is also used as a mixing solution (diluent) for other medications used to irrigate the body (e.g., bacitracin, polymyxin).

Potassium Chloride in Lactated Ringers and Dextrose is also used to associated treatment for these conditions: Acute Renal Failure (ARF), Chronic Renal Failure (CRF), Dehydration, Dehydration Hypertonic, Dry Mouth, Electrolyte depletion, End-stage Chronic Kidney Failure, Fluid Loss, Hyperkalemia, Hypocalcemia, Hypocalcemic tetany, Hypovolaemia, Isotonic Dehydration, Shock, Hypovolemic, Beta blocker overdose, Calcium channel blocker overdose, Continuous Renal Replacement Therapy, Electrolyte replacement, Haemodiafiltration, Hemodialysis Treatment, Hemofiltration, Irrigation therapy, Parenteral Nutrition, Peritoneal dialysis therapy, Plasma Volume Replacement, Urine alkalinization therapy, Distension of the joints, Extraocular irrigation, Fluid and electrolyte maintenance therapy, Induction of cardiac arrest, Irrigation of the jointsArrhythmia, Caloric Deficit, Edema of the cerebrum, Metabolic Alkalosis, Hypoglycemic reaction, Blood Specimen Collection, Electrolyte replacement, Nutritional supplementation, Parenteral Nutrition, Parenteral rehydration therapy, Plasmapheresis, Positive cardiac inotropic effect, Total parenteral nutrition therapy, Urine alkalinization therapy, Fluid and electrolyte maintenance therapyDehydration, Dry Mouth, Hypokalemia, Hypotonic Dehydration, Hypovolaemia, Isotonic Dehydration, Markedly Reduced Food Intake, Metabolic Acidosis, Hypodermoclysis, Mild Metabolic acidosis, Mild, moderate Metabolic Acidosis, Ocular edema, Acid-Base Balance, Bowel preparation therapy, Electrolyte replacement, Fluid replacement therapy, Hemodialysis Treatment, Hemofiltration, Parenteral Nutrition, Parenteral rehydration therapy, Plasma Volume Replacement, Urine alkalinization therapy, Fluid and electrolyte maintenance therapyAllergic Rhinitis (AR), Corneal Edema, Dehydration, Dehydration Hypertonic, Fluid Loss, Hemodilution, Hypertension Intracranial, Hypokalemia, Hyponatremia, Hypotonic Dehydration, Hypovolaemia, Increased Intra Ocular Pressure (IOP), Inflammation of the Nasal Mucosa, Isotonic Dehydration, Metabolic Acidosis, Nasal Congestion, Nasal irritation, Oliguria caused by Acute Renal Failure (ARF), Potassium deficiency, Sinusitis, Skin Irritation, Sodium Depletion, Dryness of the nose, Hypochloremic state, Mild Metabolic acidosis, Mild, moderate Metabolic Acidosis, Electrolyte replacement, Fluid replacement therapy, Heart-Lung-Machine, Oral rehydration therapy, Parenteral Nutrition, Parenteral rehydration therapy, Peritoneal dialysis therapy, Plasma Volume Replacement, Regional Citrate Anticoagulation (RCA), Renal Replacement Therapies, Urine alkalinization therapy, Wound irrigation therapy, Ear wax removal, Fluid and electrolyte maintenance therapy, Increased renal excretion of toxic substances, Maintenance source of fluid and electrolytes, Parenteral drug administration, Reducing brain mass

How Potassium Chloride in Lactated Ringers and Dextrose works

Calcium chloride in water dissociates to provide calcium (Ca²⁺) and chloride (Cl^-) ions. They are normal constituents of the body fluids and are dependent on various physiological mechanisms for maintenance of balance between intake and output. For hyperkalemia, the influx of calcium helps restore the normal gradient between threshold potential and resting membrane potential.

Glucose supplies most of the energy to all tissues by generating energy molecules ATP and NADH during a series of metabolism reactions called glycolysis. Glycolysis can be divided into 2 main phases where the preparatory phase is initiated by the phosphorylation of glucose by a hexokinase to form glucose 6-phosphate. The addition of the high-energy phosphate group activates glucose for subsequent breakdown in later steps of glycolysis and is the rate-limiting step. Products end up as substrates for following reactions, to ultimately convert C6 glucose molecule into two C3 sugar molecules. These products enter the energy-releasing phase where total of 4ATP and 2NADH molecules are generated per one glucose molecule. The total aerobic metabolism of glucose can produce up to 36 ATP molecules. This energy-producing reactions of glucose is limited to D-glucose as L-glucose cannot be phosphorlyated by hexokinase. Glucose can act as precursors to generate other biomolecules such as vitamin C. It plays a role as a signaling molecule to control glucose and energy homeostasis. Glucose can regulate gene transcription, enzyme activity, hormone secretion, and the activity of glucoregulatory neurons. The types, number and kinetics of glucose transporters expressed depends on the tissues and fine-tunes glucose uptake, metabolism, and signal generation in order to preserve cellular and whole body metabolic integrity .

Supplemental potassium in the form of high potassium food or potassium chloride may be able to restore normal potassium levels.

Sodium and chloride — major electrolytes of the fluid compartment outside of cells (i.e., extracellular) — work together to control extracellular volume and blood pressure. Disturbances in sodium concentrations in the extracellular fluid are associated with disorders of water balance.

Dosage

Potassium Chloride in Lactated Ringers and Dextrose dosage

The volume and rate of infusion of dextrose solution will depend upon the requirements of the individual patient and the judgement of the physician.

The maximum rate at which dextrose can be infused without producing glycosuria is 0.5 gm/kg/hr.

The usual recommended flow rate for adult is 10-35 drops per minute infused intravenously.

Intravenous-

Hyperkalaemia:

• Adult: 25-50 g combined with 10 units of regular insulin, administered over 30-60 minutes; may repeat if necessary. Alternatively, 25 g combined with 5-10 units of regular insulin infused over 5 minutes; may repeat if necessary.
• Child and infants: 0.5-1 g/kg (using 25% or 50% solution) combined with regular insulin (1 unit for every 4-5 g dextrose given); infuse over 2 hr, may repeat if necessary.

Intravenous-

Hypoglycaemia:

• Adult: 10-25 g (40-100 ml of 25% solution or 20-50 ml of 50% solution). Doses may be repeated in severe cases.
• Child: ≤6 mth: 0.25-0.5 g/kg/dose; >6 mth: 0.5-1 g/kg/dose. Doses may be repeated in severe cases. Max: 25 g/dose.

Oral-

Hypoglycaemia:

• Adult: 10-20 g as single dose; may repeat in 10 min if needed.
• Child: >2 yr: 10-20 g as single dose; may repeat in 10 min if needed.

Oral:Dosage must be adjusted to the individual needs of each patient.

• Adults: In severe deficiencies 3-6 tablets or 4-8 teaspoonful or 25-50 mmol per day orally in divided doses for some days with fruit juice, sweet or plain water.
• Children: ½-1 teaspoonful twice daily or 1-3 mmol/kg body weight a day in several divided doses.

Patient should take Potassium chloride with meals.

Intravenous:

Severe acute hypokalaemia:

• Adult: If serum potassium level >2.5 mEq/L, give at a rate not exceeding 10 mEq/hr in a concentration of up to 40 mEq/L. Max dose: 200 mEq/24 hr. If serum potassium level <2 mEq/L, may infuse at a rate of up to 40 mEq/hr. Continuous cardiac monitoring is essential. Max dose: 400 mEq/24 hr.

75 mg KCl equivalent to 1 mmol K+

Infants, children & adults: 2-6 drops into each nostril as needed daily

Use in Children: Safe for pediatrics

It should not be administered by SC or IM route. Dextrose should be infused through the largest available peripheral vein.

Side Effects

Venous thrombosis, phlebitis, hypovolemia, hypervolemia, dehydration, oedema, fever, mental confusion, unconsciousness, hyperosmolar syndrome, hyperglycaemia, hypokalaemia, acidosis, hypophosphataemia, hypomagnesemia, polyuria, glycosuria, ketonuria, nausea, diarrhoea, polydipsia, vein irritation, tissue necrosis, pulmonary oedema, tachypnoea.

GI ulceration (sometimes with haemorrhage and perforation or with late formation of strictures) following the use of enteric-coated K chloride preparation; hyperkalaemia. Oral: Nausea, vomiting, diarrhoea and abdominal cramps. IV: Pain or phloebitis; cardiac toxicity.

No side Effects are expected to occur. However stinging, sneezing, increased nasal discharge, or salty taste may occur in some cases.

Toxicity

Too rapid injection may produce lowering of blood pressure and cardiac syncope. Persistent hypercalcemia from overdosage of calcium is unlikely because of rapid excretion.

Oral LD50 value in rats is 25800mg/kg. The administration of glucose infusions can cause fluid and/or solute overloading resulting in dilution of the serum electrolyte concentrations, over-hydration, congested states, or pulmonary oedema. Hypersensitivity reactions may also occur including anaphylactic/anaphylactoid reactions from oral tablets and intravenous infusions.

The administration of oral potassium salts to persons with normal excretory mechanisms for potassium rarely causes serious hyperkalemia. However, if excretory mechanisms are impaired, of if potassium is administered too rapidly intravenously, potentially fatal hyperkalemia can result. It is important to recognize that hyperkalemia is usually asymptomatic and may be manifested only by an increased serum potassium concentration (6.5-8.0 mEq/L) and characteristic electrocardiographic changes (peaking of T-waves, loss of P-wave, depression of S-T segment, and prolongation of the QT interval). Late manifestations include muscle paralysis and cardiovascular collapse from cardiac arrest (9-12 mEq/L).

The rare inadvertent intravascular administration or rapid intravascular absorption of hypertonic sodium chloride can cause a shift of tissue fluids into the vascular bed, resulting in hypervolemia, electrolyte disturbances, circulatory failure, pulmonary embolism, or augmented hypertension.

Precaution

Concentrated dextrose solution should not be infused rapidly or for a long period. It may be hazardous in patients with impaired hepatic or renal function and severe sepsis.

Care should be taken to avoid circulatory overload, particularly in patients with cardiac insufficiency. Caution must be exercised in the administration of these injections to patients receiving corticosteroids or corticotropin. These injections should be used with caution in patients with overt or subclinical diabetes mellitus.

Parenteral drug products should be inspected visually for particulate matter and discoloration prior to administration whenever solution and container permit. Do not administer unless solution is clear and seal is intact.

Renal or adrenocortical insufficiency; cardiac disease; acute dehydration; extensive tissue destruction. Pregnancy. Ensure adequate urine output; monitor plasma-potassium and other electrolyte concentrations. Discontinue treatment if severe nausea, vomiting or abdominal distress develops. Accumulation of potassium may occur in renal impairment.

Interaction

There is no drug drug interaction and none well documented.

Potassium-sparing diuretics, ACE inhibitors, ciclosporin and potassium-containing drugs. Antimuscarinics delay gastric emptying time consequently increasing risk of GI adverse effects esp of solid oral dosage forms.

Volume of Distribution

The mean volume of distribution after intravenous infusion is 10.6L.

The volume of distribution is 0.64 L/kg.

Elimination Route

Polysaccharides can be broken down into smaller units by pancreatic and intestinal glycosidases or intestinal flora. Sodium-dependent glucose transporter SGLT1 and GLUT2 (SLC2A2) play predominant roles in intestinal transport of glucose into the circulation. SGLT1 is located in the apical membrane of the intestinal wall while GLUT2 is located in the basolateral membrane, but it was proposed that GLUT2 can be recruited into the apical membrane after a high luminal glucose bolus allowing bulk absorption of glucose by facilitated diffusion . Oral preparation of glucose reaches the peak concentration within 40 minutes and the intravenous infusions display 100% bioavailability.

Potassium is a normal dietary constituent and under steady-state conditions the amount of potassium absorbed from the gastrointestinal tract is equal to the amount excreted in the urine.

Absorption of sodium in the small intestine plays an important role in the absorption of chloride, amino acids, glucose, and water. Chloride, in the form of hydrochloric acid (HCl), is also an important component of gastric juice, which aids the digestion and absorption of many nutrients.

Half Life

The approximate half-life is 14.3 minutes following intravenous infusion. Gut glucose half-life was markedly higher in females (79 ± 2 min) than in males (65 ± 3 min, P < 0.0001) and negatively related to body height (r = -0.481; P < 0.0001).

17 minutes

Clearance

The mean metabolic clearance rate of glucose (MCR) for the 10 subjects studied at the higher insulin level was 2.27 ± 0.37 ml/kg/min at euglycemia and fell to 1.51±0.21 ml/kg/ at hyperglycemia. The mean MCR for the six subjects studied at the lower insulin level was 1.91 ± 0.31 ml/kg/min at euglyglycemia.

Elimination Route

Approximately 80% of body calcium is excreted in the feces as insoluble salts; urinary excretion accounts for the remaining 20%.

Glucose can be renally excreted.

Potassium is a normal dietary constituent and, under steady-state conditions, the amount of potassium absorbed from the gastrointestinal tract is equal to the amount excreted in the urine. Potassium depletion will occur whenever the rate of potassium loss through renal excretion and/or loss from the gastrointestinal tract exceeds the rate of potassium intake.

Substantially excreted by the kidneys.

Pregnancy & Breastfeeding use

Pregnancy Category C. Animal reproduction studies have shown an adverse effect on the fetus and there are no adequate and well-controlled studies in humans, but potential benefits may warrant use of the drug in pregnant women despite potential risks.

Category C: Either studies in animals have revealed adverse effects on the foetus (teratogenic or embryocidal or other) and there are no controlled studies in women or studies in women and animals are not available. Drugs should be given only if the potential benefit justifies the potential risk to the foetus.

It is unknown if this medication passes into breast milk. Consult with your doctor before breast-feeding.

Contraindication

Concentrated dextrose solution is contraindicated in patients with Glucose-Galactose Malabsorption Syndrome and severe hydration. The infusion of hypertonic dextrose injections is contraindicated in patients having intracranial or intraspinal hemorrhage, in patients who are severely dehydrated, in patients who are anuric, and in patients in hepatic coma. Solutions containing dextrose may be contraindicated in patients with known allergy to corn or corn products.

Hyperchloraemia, severe renal or adrenal insufficiency.

Tell your doctor about your medical history, especially of heart problems (e.g., congestive heart failure), lung problems (pulmonary edema), kidney problems, low levels of potassium (hypokalemia), high levels of sodium (hypernatremia), and any allergies.

Acute Overdose

Reevaluate patient's condition and institute appropriate symptomatic treatment.

Storage Condition

Store at 25°C.

Intravenous: Store at 15-30° C.

Oral: Store below 30° C.

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