The ability of a medication to initiate or alter cell activity in a therapeutic or desired manner is referred to as:
A) potency.
B) efficacy.
C) affinity.
D) the threshold level.
Answer: B) efficacy.
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A male patient who has possible cerebral edema has a serum sodium level of 116 mEq/L (116 mmol/L) and a decreasing level of consciousness (LOC). He is now complaining of a headache. Which prescribed interventions should the nurse implement first?
a. Administer IV 5% hypertonic saline. b. Draw blood for arterial blood gases (ABGs). c. Send patient for computed tomography (CT). d. Administer acetaminophen (Tylenol) 650 mg orally.
The ECG complex consists of five waveforms labeled with the letters P, Q, R, S, and T. What does the P-wave represent?
A) The end of ventricular conduction or depolarization and the beginning of ventricular recovery or repolarization B) Atrial depolarization (conduction of the electrical impulse through the atria) C) Ventricular recovery or repolarization D) Ventricular depolarization and repolarization
Which is a semi-sitting position?
a. Fowler's position b. The supine position c. The dorsal recumbent position d. Sims' position
Store the artificial eye in tap water overnight.
Answer the following statement true (T) or false (F)