1
CATEGORY anatomy
Oxygen saturation is likely to be lowest when an asthmatic with a diagnosis of pneumonia is
QUESTION
positioned:
CORRECT ANSWER C) Lying on the right side
YOUR ANSWER C) Lying on the right side
Ventilation and perfusion distribute to the dependent lung fields. In a patient with pneumonia in
the right lung, positioning with the right lung down would send more blood flow to the
RATIONALE
consolidated, nonventilated areas of the lung and produce a worse V/Q mismatch, which
would decrease oxygen diffusion into the blood and produce a lower arterial oxygen saturation.
2
CATEGORY anatomy
QUESTION Which of the following is true of the biological functions of estrone?
CORRECT ANSWER C) Estrone is required for proper development of female secondary sexual characteristics.
YOUR ANSWER C) Estrone is required for proper development of female secondary sexual characteristics.
RATIONALE Estrone is required for proper development of female secondary sexual characteristics.
3
CATEGORY anatomy
In performing a physical assessment, the nurse notes the patient has a “barrel―
QUESTION
configuration to the chest. This is a consequence of:
CORRECT ANSWER D) Increased residual lung volume
YOUR ANSWER D) Increased residual lung volume
Emphysema typically produces a barrel –shaped chest with an increased anterior-posterior
RATIONALE dimension. This is a result of loss of lung parenchyma resulting in reduced elastic recoil and
increased residual volume and functional residual capacity.
4
CATEGORY anatomy
QUESTION Which of the following is true of the biological functions of testosterone?
CORRECT ANSWER D) Testosterone is needed for development of male secondary sexual characteristics.
YOUR ANSWER D) Testosterone is needed for development of male secondary sexual characteristics.
Testosterone is needed for development of male secondary sexual
RATIONALE
characteristics.
5
CATEGORY anatomy
QUESTION Ausculation of the chest reveals bilateral fine crackles in the bases bilaterally, indicating:
CORRECT ANSWER B) Left-sided heart failure
YOUR ANSWER B) Left-sided heart failure
This occurs because valve dysfunction creates abnormally high pressures in the cardiac
RATIONALE chambers and in the pulmonary capillary bed. Isolated right-sided heart failure would not
cause pulmonary congestion; it would present as edema in the systemic circulation.
, 6
CATEGORY biology
QUESTION Why is heat an effective means of sterilization?
A) Heat is an effective means of sterilization because it destroys the proteins of microbial
CORRECT ANSWER
life-forms including fungi, bacteria and viruses.
A) Heat is an effective means of sterilization because it destroys the proteins of microbial
YOUR ANSWER
life-forms including fungi, bacteria and viruses.
Heat is an effective means of sterilization because it destroys the proteins of microbial
RATIONALE
life-forms including fungi, bacteria and viruses.
7
CATEGORY biology
QUESTION Closed drainage systems work to re-expand a lung after pneumothorax by:
CORRECT ANSWER A) Re-establishing the normal negative intrapleural pressure.
YOUR ANSWER A) Re-establishing the normal negative intrapleural pressure.
The effect of closed chest drainage is to re-establish negative pressure within the pleural
RATIONALE
space to encourage re-expansion of the affected lung alveoli.
8
CATEGORY biology
QUESTION Patients with chronic renal failure usually exhibit:
CORRECT ANSWER C) Hypocalcemia
YOUR ANSWER C) Hypocalcemia
Hypocalcemia is a common feature in renal failure because the kidneys fail to produce
activated vitamin D, which then interferes with the absorption of calcium from the diet. In
RATIONALE
addition, the kidneys are unable to efficiently rid the body of phosphate because a low GFR,
which contributes to hormonal dysregulation associated with hypocalcemia.
9
CATEGORY biology
QUESTION In addition to hypertension, pre-eclampsia is characterized by:
CORRECT ANSWER C) Protein in the urine and edema
YOUR ANSWER C) Protein in the urine and edema
In addition to elevated blood pressure, retention of fluid leading to edema and leakage of
RATIONALE protein into the urine are usually found in pregnancy induced hypertension (pre-eclampsia).
Nausea, vomiting, fatigue and back pain are common findings of normal pregnancy.
10
CATEGORY biology
QUESTION What is the function of hemoglobin?
A) Hemoglobin is the protein in red blood cells that is responsible for carrying oxygen to the
CORRECT ANSWER
cells of the body.
A) Hemoglobin is the protein in red blood cells that is responsible for carrying oxygen to the
YOUR ANSWER
cells of the body.
Hemoglobin is the protein in red blood cells that binds to oxygen and carries oxygen from the
RATIONALE
respiratory organs to the rest of the body.