What does the student learn about erythrocytes?
a. Erythrocytes contain a nucleus, mitochondria, and ribosomes.
b. Erythrocytes synthesize proteins.
c. Erythrocytes have the ability to change shape to squeeze through microcirculation.
d. Erythrocytes are more abundant in women than men.
Ans: c. Erythrocytes have the ability to change shape to squeeze through microcirculation.
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An adult patient with a fractured mandible has returned to the unit postoperatively. The patient's jaws are wired and will remain wired for the next 6 weeks. What should be kept at the patient's bedside for this patient?
A) Thermometer B) Sterile gauze packing C) Wire cutters D) Ice water
A researcher wants to select a way to measure how values in a research study are dispersed around the mean, and how homogeneous or heterogeneous they are, for a ratio-level variable. The researcher might select which of the following?
(Select all that apply.) a. Mode b. Range c. Frequency distribution d. Mean e. Standard deviation
Lidocaine may be used for treating dysrhythmias if the:
1. dysrhythmias are not ventricular in nature. 2. label indicates that the medication contains preservatives. 3. medication is given intravenously. 4. patient is alert and responsive.
A nurse is preparing to administer medications to a client. The nurse understands that which substance has the lowest rate of crossing renal tubular membranes and would therefore be excreted in the urine?
A. Lipid-soluble drugs B. Volatile drugs C. Ionized drugs D. Non-ionized drugs