In a proportion using ratios, units can be canceled only when they are found in the same part of each of
the ratios.
Indicate whether the statement is true or false
TRUE
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When performing a scrotal assessment, the nurse notices that the scrotal contents show a red glow with transillumination. On the basis of this finding the nurse would:
a. Assess the patient for the presence of a hernia. b. Suspect the presence of serous fluid in the scrotum. c. Consider this finding normal, and proceed with the examination. d. Refer the patient for evaluation of a mass in the scrotum.
A child is diagnosed with a helminthic infection. Which of the following would the nurse expect to be prescribed? Select all answers that apply
A) Erythromycin B) Albendazole C) Pyrantel pamoate D) Acyclovir E) Metronidazole F) Permethrin
Mrs. Unger is a 53-year-old woman who was diagnosed with breast cancer following a process that began with abnormal screen mammography results. Mrs
Unger, her oncologist, and surgeon have agreed on a mastectomy as treatment and have discussed the importance of rigorously assessing whether her cancer has metastasized. What action will best detect possible metastasis of Mrs. Unger's breast cancer? A) Serial bone marrow biopsies B) Biopsy of the axillary lymph nodes C) Careful grading of the tumor cells D) Gauging her response to radiation therapy
If all of the tickets purchased in this week's state lottery is considered the population, the five winning tickets drawn on Saturday constitute the sample. If the lottery is not "fixed," why is this a probability sample? (Select all that apply.)
a. Because according to the laws of probability, the group of five people who won is exactly representative of all of the persons who purchased tickets b. Because each ticket purchased has a chance of being included in the sample c. Because the tickets drawn have a high probability of being representative of all tickets purchased d. Because use of random sampling increases the probability that those persons whose tickets win will play the lottery again e. Because each ticket probably has an equal chance of being included in the winning group, whether or not random sampling is used