Which compromise in fetal oxygenation could be a result of a post-date pregnancy?
A. Increased saturation capacity
B. Increased fetal oxygen affinity
C. Decreased placental perfusion
Answer: C. Decreased placental perfusion
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An older adult's constipation has not responded to first-line laxatives, so lactulose has been prescribed. The nurse should know that this medication achieves a therapeutic effect by which of the following means?
A) Decreasing the viscosity of intestinal contents in the duodenum B) Pulling water into the intestinal lumen by osmotic pressure C) Irritating the intestinal mucous membrane D) Relaxing the muscle tone of the ileocecal valve and anal sphincter
Mr. Levi has liver failure. He is receiving lactulose to
A) increase renal perfusion. B) reduce serum ammonia levels. C) improve nitrogen balance. D) prevent bleeding from esophageal varices.
You are admitting a patient to your unit who has just come back from surgery. The patient's husband is providing the information you need. During the discussion with the patient's husband, you discover that the patient has a living will
What applies to a living will? A) The patient is legally unable to refuse basic life support. B) The physician may disagree with the patient's desires for treatment. C) The patient may nullify the living will during the illness. D) Power-of-attorney may change while the patient is hospitalized.
An individual is homozygous for a gene if the genes at corresponding loci on homologous chromosomes are the same and heterozygous for the gene if the genes are different
Indicate whether the statement is true or false