If a blood test showed a low level of sodium, is it hypertonic or hypotonic

in a blood test, is sodium considered as atom or ion?

A 72-year-old man just returned from the cancer clinic after receiving the first dose of chemotherapy against lung cancer. His blood biochemical results are:Analyte (SERUM)ResultReference intervalSodium124135 – 145 mmol/LPotassium3.83.5 – 5.5 mmol/LChloride9095 – 110 mmol/LBicarbonate2522 – 32 mmol/LUrea3.63.0 – 8.0 mmol/LCreatinine4740 – 90 μmol/LHow would you explain his low sodium result? Predict his urine osmolality.Group of answer choicesSyndrome of inappropriate ADH (siADH); low urine osmolalityTumour lysis syndrome; low urine osmolalityTumour lysis syndrome; high urine osmolalitySyndrome of inappropriate ADH (siADH); high urine osmolali

ed blood cells become crenated in a(n) ____________ solution. hypertonic hypotonic hydrostatic isotonic

Sodium 136 mEq/LPotassium 2.6 mEq/LChloride 93 mEq/LBicarbonate 34 mEq/LBlood urea nitrogen 9 mg/dLCreatinine 0.8 mg/dLGlucose 150 mg/dL (non-fasting)Magnesium 0.6 mEq/L Arterial blood gas  pH 7.50  PaO2 95 mmHg  PaCO2 48 mmHg Urine studies show high levels of potassium and chloride, and low levels of calcium. Which of the following conditions would produce similar findings to this patient's disease?

A 62-year-old man with a history of congestive heart failure (CHF) presents with confusion, nausea, and vomiting. Physical examination reveals peripheral edema, bibasilar crackles, and jugular venous distention. The patient is found to have a sodium level of 112 mEq/L. The physician places the patient on free water restriction. Which of the following laboratory values do you expect with respect to the fractional excretion of sodium (FENa) and urine sodium (UNa) with this condition? FENa UNa(A) >1% <10 mEq/L(B) >1% >20 mEq/L(C) <1% <10 mEq/L(D) <1% >20 mEq/L