Free APEA Expert Instructors Questions and Answers 1 — Questions and Answers
Question 1: When performing a musculoskeletal exam on a patient with mechanical low back pain, osteoporosis is suspected. Positive findings would include all of the following except:
- Itching
- Ligamentous injury
- Cancer of the sigmoid colon
- Calf wasting (Correct answer)
Correct answer: Calf wasting
When evaluating for osteoporosis in the context of low back pain, clinicians look for signs related to bone fragility, such as tenderness over vertebrae, kyphosis, or height loss. Calf wasting, which refers to muscle atrophy in the lower leg, is typically associated with neurological conditions, disuse, or peripheral vascular issues, not directly with osteoporosis. Therefore, it would not be a positive finding indicating osteoporosis during a musculoskeletal examination.
Question 2: Pain and crepitus over the patella suggests?
- In the right lateral fornix
- Dilation of the pupils
- Roughening of the patellar undersurface (Correct answer)
- Salty taste on the skin
Correct answer: Roughening of the patellar undersurface
Pain and crepitus (a crackling or grinding sound/sensation) over the patella are classic signs of patellofemoral pain syndrome or chondromalacia patellae. These conditions are characterized by the softening or roughening of the cartilage on the undersurface of the kneecap (patella) where it articulates with the femur. This roughening causes friction and abnormal tracking during knee movement, leading to pain and the characteristic crepitus.
Question 3: In older adults, the presence of heart sound S3 suggests:
- Renal failure
- Myocardial infarction
- Heart failure (Correct answer)
- Hypertension
Correct answer: Heart failure
In older adults, the presence of a third heart sound (S3) is a significant clinical finding that often suggests ventricular dysfunction and fluid overload. An S3, sometimes called a 'ventricular gallop,' occurs during rapid ventricular filling in early diastole. While it can be benign in younger individuals, in older adults, it is a strong indicator of systolic heart failure, signifying a poorly compliant ventricle that is struggling to accommodate the incoming blood volume.
Question 4: Which one of the following procedures would confirm a definitive medical diagnosis of Hirschsprung's disease?
- A rectal biopsy (Correct answer)
- A bronchoscope
- A tonic pupil
- A barium enema
Correct answer: A rectal biopsy
Hirschsprung's disease is a congenital condition characterized by the absence of ganglion cells in a segment of the colon, leading to functional obstruction. The definitive diagnosis of Hirschsprung's disease is confirmed by a rectal biopsy, which allows for microscopic examination of the tissue to identify the absence of these crucial nerve cells. While a barium enema can suggest the diagnosis by showing a transition zone, only the biopsy provides histological confirmation.
Question 5: While auscultating the patient's heart, a medium, soft murmur is audible. It is pan systolic and heard loudest at the apex with radiation to the left axilla. These findings are consistent with:
- Mitral regurgitation (Correct answer)
- Heart failure
- Aortic stenosis
- Hypertension
Correct answer: Mitral regurgitation
A medium, soft, pansystolic murmur heard loudest at the apex with radiation to the left axilla is the classic description of mitral regurgitation. This occurs when the mitral valve does not close completely during systole, allowing blood to flow backward from the left ventricle into the left atrium. The murmur is pansystolic because it lasts throughout systole, and its location and radiation pattern are characteristic of blood flow through the incompetent mitral valve.
Free APEA Expert Instructors Questions and Answers 1
When performing a musculoskeletal exam on a patient with mechanical low
back pain, osteoporosis is suspected.
Positive findings would include all of the
following except: