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biochemical test
electrolytes, blood gas

Laboratory：Hachioji

○electrolytes, blood gas

TEST NAME	SPECIMEN REQUIREMENT （ｍL）	CONTAINER	CAP COLOR	STORE TEMPERATURE (STABILITY)	TURNAROUND TIME (DAY)	METHODOLOGY	REFERENCE RANGE (UNIT)
Sodium (Na)	Serum 0.5	S09 ↓ A00		（1 month）	2-4	Electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	136～147(mEq/L)
Sodium (Na)	Urine storage 0.5	U00			2-4	Electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	1.6～5.8(g/day)
K (potassium)	Serum 0.5	S09 ↓ A00		（1 month）	2-4	Electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	3.6～5.0(mEq/L)
K (potassium)	Urine storage 0.5	U00			2-4	Electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	1.0～3.9(g/day)
Chloride (Cl)	Serum 0.5	S09 ↓ A00		（1 month）	2-4	Electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	98～109(mEq/L)
Chloride (Cl)	Urine storage 0.5	U00			2-4	Electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	2.5～8.9(g/day)
Magnesium (Mg)	Serum 0.5	S09 ↓ A00		（1 month）	2-4	Xylydyl blue method	1.8～2.6(mg/dL)
Magnesium (Mg)	Urine storage 0.5	U00			2-4	Xylydyl blue method	0.02～0.13(g/day)
Calcium (Ca)	Serum 0.5	S09 ↓ A00		（28 days）	2-4	Arsenazo Ⅲ method	8.5～10.2(mg/dL)
Calcium (Ca)	Urine storage 0.5	U00			2-4	Arsenazo Ⅲ method	0.1～0.3(g/day)
Ionized calcium	Serum 0.9	S09 ↓ A00			3-5	Ion electrode method Electrode method A method that utilizes a charge transfer reaction at the electrode and solution interface. Ion-selective electrodes respond to specific ions and measure the ion concentration from the potential difference that occurs in proportion to the logarithm of the ion's activity.	2.41～2.72(mEq/L)
Inorganic phosphorus (P)	Serum 0.5	S09 ↓ A00		（1 month）	2-4	Molybdic acid direct method	2.4～4.3(mg/dL)
Inorganic phosphorus (P)	Urine storage 0.5	U00			2-4	Molybdic acid direct method	0.5～1.0(g/day)
Osmotic pressure	Serum 0.7	S09 ↓ A00			2-4	Freezing point depression method	276～292(mOsm/Kg･H₂O)
Osmotic pressure	Partial urine 1	U00			2-4	Freezing point depression method	When concentrated: 850 or more. When diluted: 40-85 (Fishberg test) (mOsm/Kg・H₂O)