The patient received Humalog (rapid acting) insulin 5 units subcutaneously at 8:00 AM. The nurse plans to monitor this patient for signs of hypoglycemia at which time related to the insulin's peak action?

Choice A reason: Metabolic acidosis is a condition where the blood pH is lower than normal, due to an excess of acids or a loss of bases in the body. Jo is most at risk of developing metabolic acidosis, because of the high blood glucose level. High blood glucose can cause diabetic ketoacidosis, a complication of Type 1 Diabetes, where the body breaks down fat for energy and produces ketones, which are acidic substances. Ketones can accumulate in the blood and lower the pH, causing symptoms such as nausea, vomiting, abdominal pain, fruity breath, and confusion.

Choice B reason: Metabolic alkalosis is a condition where the blood pH is higher than normal, due to an excess of bases or a loss of acids in the body. Jo is not likely to develop metabolic alkalosis, because of the high blood glucose level. Metabolic alkalosis can be caused by conditions such as vomiting, diuretic use, or excessive antacid intake, which can increase the bicarbonate level or decrease the chloride level in the blood. These conditions are not related to Jo's diabetes.

Choice C reason: Respiratory acidosis is a condition where the blood pH is lower than normal, due to an accumulation of carbon dioxide in the body. Jo is not prone to developing respiratory acidosis, because of the high blood glucose level. Respiratory acidosis can be caused by conditions that impair the lung function, such as asthma, chronic obstructive pulmonary disease (COPD), or pneumonia, which can reduce the ventilation and increase the carbon dioxide level in the blood. These conditions are not related to Jo's diabetes.

Choice D reason: Respiratory alkalosis is a condition where the blood pH is higher than normal, due to a loss of carbon dioxide in the body. Jo is not susceptible to developing respiratory alkalosis, because of the high blood glucose level. Respiratory alkalosis can be caused by conditions that increase the breathing rate, such as anxiety, fever, or hyperventilation, which can reduce the carbon dioxide level in the blood. These conditions are not related to Jo's diabetes.

Choice A reason: This statement is false. Edema is a sign of fluid overload, not fluid deficit. Edema occurs when fluid accumulates in the interstitial space due to increased capillary hydrostatic pressure or decreased plasma oncotic pressure. Edema is more common in patients with heart failure, liver disease, or kidney disease¹.

Choice B reason: This statement is false. Skin turgor is a measure of skin elasticity and hydration. It can be affected by factors such as age, skin condition, and ambient temperature. Skin turgor is not a reliable indicator of fluid balance, as it can be normal in patients with mild to moderate hypovolemia².

Choice C reason: This statement is false. Urine output is a measure of kidney function and fluid excretion. It can be influenced by factors such as fluid intake, diuretics, hormones, and renal diseases. Urine output is not a sensitive indicator of fluid balance, as it can be normal or even increased in patients with hypovolemia due to compensatory mechanisms.

Choice D reason: This statement is true. Daily weight is a measure of body mass and fluid status. It can reflect changes in fluid balance more accurately than other methods, as long as the weight is measured at the same time, on the same scale, and with the same clothing each day. A decrease in weight can indicate fluid loss due to hypovolemia.