Nonhormonal contraceptives prevent pregnancy by which of the following actions?
a. Interfering with sperm movement and/or creating a difficult environment for sperm to travel
b. Preventing the ovary from releasing an egg into a fallopian tube
c. Thickening of the cervical mucus, making it difficult for sperm to enter the uterus
d. Thinning of the lining of the endometrium to prevent implantation of the fertilized ovum
A
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A patient with AIDS has developed a number of secondary infections in recent weeks, including Kaposi's sarcoma. As a result of this most recent diagnosis, his care team has opted to begin treatment with interferon alfa-2a. The nurse is aware that this drug will address the etiology of Kaposi sarcoma by
A) inhibiting tumor growth by enhancing inflammation. B) potentiating the effects of phagocytes and macrophages. C) causing mutations in the DNA of cancerous cells. D) increasing the production of B cells and T cells.
A nurse caring for a patient with neurological impairment often must use painful stimuli to elicit a patient's response. The nurse uses subtle measures of painful stimuli, such as nailbed pressure
She neither slaps the patient nor pinches the nipple to elicit a response to pain. In this scenario, the nurse is exemplifying the ethical principle of: a. beneficence. b. fidelity. c. nonmaleficence. d. veracity.
The vaccine licensed in 2005 for protection for pertussis for older children and adults is __________
Fill in the blank(s) with correct word
A researcher administers two instruments known to measure opposite concepts and performs correlational analyses on the results. The original measure has a negative correlation of ?7?0.6 with the new measure. This indicates
a. both measures are valid. b. neither measure is valid. c. only the first measure is valid. d. only the second measure is valid.