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A physician's order instructs a nurse to take a temperature at the axilla. Where would the nurse place the thermometer?
- A. In the rectum
- B. In the mouth
- C. On the temples
- D. In the armpit
Correct Answer: A
Rationale: When a physician's order specifies taking a temperature at the axilla, the nurse should place the thermometer in the armpit. The axilla is the anatomical area of the armpit located under the arms, proximal to the trunk. Placing the thermometer in the rectum (Choice A) is used for rectal temperature measurements, in the mouth (Choice B) for oral temperature measurements, and on the temples (Choice C) is not a common site for temperature assessment. Therefore, the correct placement based on the given instruction is in the armpit.
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Which body plane divides the body into right and left sides?
- A. Frontal Plane
- B. Medial Plane
- C. Median Plane
- D. Transverse Plane
Correct Answer: C
Rationale: The correct answer is the Median Plane, also known as the sagittal plane. It divides the body into right and left sides. The Frontal Plane, or coronal plane, divides the body into front and back sections. The Transverse Plane divides the body into superior (upper) and inferior (lower) sections. Therefore, choices A, B, and D are incorrect as they do not specifically divide the body into right and left sides.
What does the term 'Afferent Nerve' mean?
- A. Carrying an impulse to the brain
- B. Carrying an impulse away from the brain
- C. Carrying impulses to the motor neurons of the appendicular muscles
- D. None of the above
Correct Answer: A
Rationale: The correct answer is 'Carrying an impulse to the brain.' Afferent nerves are sensory nerves that carry signals from sensory receptors towards the central nervous system, including the brain. Choice B, 'Carrying an impulse away from the brain,' is incorrect as this describes efferent nerves which carry signals from the central nervous system to muscles and glands. Choice C, 'Carrying impulses to the motor neurons of the appendicular muscles,' is incorrect as it describes a different type of nerve function. Choice D, 'None of the above,' is incorrect as the correct definition of afferent nerve is indeed 'Carrying an impulse to the brain.'
What procedure examines a portion of the large intestine with an endoscope?
- A. Colposcopy
- B. Sigmoidoscopy
- C. Upper GI
- D. Cardiac catheterization
Correct Answer: B
Rationale: Sigmoidoscopy is the correct answer because it specifically examines the sigmoid colon located in the descending colon using an endoscope inserted through the rectum. This procedure captures video and images of the large intestine's lining, helping in the diagnosis of conditions like inflammatory bowel disease or colorectal cancer. Colposcopy, on the other hand, is a procedure for examining the cervix and vagina, not the large intestine. Upper GI involves capturing images of the esophagus and stomach, focusing on the upper gastrointestinal tract, not the large intestine. Cardiac catheterization is a procedure that involves threading a thin instrument through the femoral artery to the heart, used for cardiac interventions and not related to examining the large intestine.
The Atlas and the Axis are:
- A. found in the vertebrae.
- B. described as being cervical.
- C. the first two bones that form the column for the spine on the superior aspect.
- D. All of the above.
Correct Answer: D
Rationale: The Atlas and the Axis are the first two cervical vertebrae, designated as C1 and C2. The Atlas (C1) supports the skull, while the Axis (C2) allows for rotation of the skull. Therefore, all the statements in choices A, B, and C are correct, making 'All of the above' the correct answer. Choice A is correct as the Atlas and Axis are indeed found in the vertebrae. Choice B is correct as they are the first two cervical vertebrae. Choice C is correct as these bones form the superior aspect of the spine.
You have been assigned to take an apical pulse for one of the patients on the nursing unit. How will you do this?
- A. You will place the stethoscope over the heart and listen for any irregular beats.
- B. You will place the stethoscope over the heart and count the beats per minute.
- C. You will place your fingertip over the patient's wrist and feel for any irregular beats.
- D. You will place your fingertip over the patient's wrist and count the beats per minute.
Correct Answer: B
Rationale: To take an apical pulse accurately, you should place the stethoscope over the heart and count the number of beats per minute. This method provides a precise assessment of the heart rate. While listening for irregular beats is essential for assessing the heart's rhythm, the primary objective of taking an apical pulse is to determine the heart rate. Choices C and D are incorrect because the apical pulse is not taken at the wrist; instead, it is obtained by auscultating at the apex of the heart, usually at the point where the fifth intercostal space meets the midclavicular line.