Explain how placenta previa presents a threat to both mother and fetus
What will be an ideal response?
Patients with placenta previa experience partial separation of the placenta from the uterine wall. which results in bleeding during the latter part of pregnancy. In addition, during the latter part of pregnancy, as the uterine cervix dilates, the abnormally located placenta may tear, disrupting large uterine vessels at the basal part of the placenta that supplies the intervillous spaces. The mother may bleed to death with a large placental tear, which in turn compromises oxygenation of the fetal blood, leading to death of the fetus.
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A patient is placed on drug therapy with omeprazole (Prilosec). Which statement most accurately describes the therapeutic effect of the drug?
a. It inhibits the conversion of pepsinogen to pepsin. b. It inhibits the action of histamine at the histamine2 (H2) receptors. c. It affects the proton pump system to block hydrogen secretion from parietal cells. d. It increases the strength of esophageal peristalsis and lowers esophageal sphincter pressure.
Besides being pivotal in the growth, maintenance, and repair of body tissue, protein plays a sig-nificant role in the body's ability to: (Select all that apply.)
1. Produce T cells 2. Manage bleeding 3. Produce carbon dioxide 4. Maintain blood pressure 5. Manage waste production 6. Transport drugs systemically
The nursing instructor is demonstrating a newborn assessment using the Ballard gestational assessment tool. Which assessment should be performed after the first hour of birth?
1. Scarf sign 2. Arm recoil 3. Popliteal angle 4. Square window sign
The patient diagnosed with schizophrenia asks why psychotropic medications are always prescribed by the doctor. The nurse's answer will be based on information that the thera-peutic action of psychotropic drugs is the result of their effect on:
a. The temporal lobe; especially Wernicke's area b. Dendrites and their ability to transmit electrical impulses c. The regulation of neurotransmitters especially dopamine d. The peripheral nervous system sensitivity to the psychotropic medications