Category: Uncategorized

A solution is made by diluting [V1] mL of a [M1] M KCl stock solution with water to a final volume of [V2] mL. What is the concentration of the diluted solution?

A 90-year-old nursing home resident presents with confusion and a cough after several days of complaining of being weak. She is bedridden, has numerous medical conditions, and takes a variety of medications. Your assessment reveals that her temperature is 101.1°F, her skin is cool and dry, her blood pressure is 118/66 mm Hg, and her heart rate is 68 beats/min and regular. She is not experiencing obvious respiratory distress, and her oxygen saturation is 93% on room air. This patient is MOST likely experiencing:

What is the molarity of [L] mL of solution that contains [g] g of Na2S?

A patient with diabetic ketoacidosis experiences polydipsia as a result of:

You are dispatched to a residence for an elderly man with an altered mental status. As you are assessing the patient, his wife tells you that he goes to dialysis several times a week, but has missed his last three treatments because their car broke down. The patient’s skin is yellow, his blood pressure is 98/60 mm Hg, and his pulse rate is 118 beats/min. The ECG reveals sinus tachycardia with peaked T waves. You should be MOST concerned with the potential for:

If a crystal of pure solute is added to a solution, and the solution crystallizes, the solution is 

A patient with suspected meningitis involuntarily flexes her knees when her head is flexed toward her chest. This is called:

You receive a call to an apartment complex for a patient with an unknown behavioral problem. The scene has been secured by law enforcement prior to your arrival. The patient, a 39-year-old man, appears very anxious and worried. He tells you that he has obsessive-compulsive disorder and stopped taking his prescribed medication a week ago because he did not like its side effects. He tells you that he has had fleeting thoughts of suicide, but denies homicidal thoughts. You should:

Portland’s population in 2007 was about 568 thousand, and had been growing by about 1.1 percent each year. Assuming that this growth follows an exponential growth model, what will Portland’s population be in 2016? Round to the nearest whole number. 

A 51-year-old man with type 2 diabetes presents with confusion, blurred vision, and signs of significant dehydration. According to the man’s wife, he has had a fever and flu-like symptoms for the past few days. She further tells you that he has “stuck to his diet” as advised by his physician. His blood pressure is 90/50 mm Hg, pulse is 120 beats/min and weak, and respirations are rapid and shallow. You assess his blood glucose level, which reads “high.” This patient is MOST likely: