What anatomical ear structure functions to equalize pressure in the middle ear so that the eardrum can vibrate freely?
a. Auricle
b. Cochlea
c. Eustachian tube
d. Stapes
ANS: C
The eustachian tube extends from the middle ear to the nasopharynx and permits air to enter or leave the middle ear cavity.
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In a patient who loses bicarbonate from the body, how does it get replaced?
A) The renal tubules secrete new bicarbonate into the urine. B) The juxtaglomerular cells secrete new bicarbonate into the blood. C) The juxtaglomerular cells generate new bicarbonate. D) Renal tubular cells generate new bicarbonate.
The priority nursing intervention after an amniotomy is to
a. Assess the color of the amniotic fluid. b. Change the patient's gown. c. Estimate the amount of amniotic fluid. d. Assess the fetal heart rate.
Select the nursing action that takes highest priority in providing care for a client diagnosed with an organic brain syndrome
a. Place the client in a group of clients to maintain his social skills. b. Order foods for the client that are attrac-tive and tasty to maintain nutritional sta-tus. c. Provide a safe environment to prevent in-jury. d. Encourage as much self-care as possible to maintain independence.
A client receiving total parenteral nutrition (TPN) through a central line reports chest discomfort and mild dyspnea. The nurse notes a churning sound over the permanent pacemaker implantation (PMI) and tachycardia
Which action should the nurse take first? a. Replace the tubing and the TPN solution immediately. b. Clamp the central catheter and place the client on the left side with the head lower than the body. c. Start oxygen by mask to reduce the hy-poxia and notify the primary health-care provider immediately. d. Assess the client for cough and cyanosis while evaluating the central catheter site for signs of infection.