All of the following are elements of red blood cells (RBC)

Question 1All of the following are elements of red blood cells (RBC) EXCEPT:

 

Young RBCs are referred to as erythrocytes and mature RBCs are reticulocytes.

 

RBCs live 120 days before being destroyed through phagocytosis.

 

Hemoglobin is the oxygen-carrying protein molecule in RBC.

 

They carry oxygen from the lungs to body tissues and transfer carbon dioxide from the tissue to the lungs.

 

Question 2The following are associated with which disease?

 

More commonly occurs in African descent; is a type chronic hemolytic anemia; can cause unpredictable acute complications that can become life threatening; is often identified in neonatal screening; and can be associated with a ‘pain crisis’.

 

Idiopathic thyrobocytopenic purpura (ITP)

 

Thormbophilia

 

Iron deficiency anemia

 

Sickle cell disease

 

Question 3Starr comes for her 2-year-old physical; she still drinks from a bottle and mom complains that she is a very picky eater. Her hemoglobin result is 10.1. You repeat it and it is 10.0. Your diagnosis is

 

Well child exam

 

Sickle cell anemia

 

Iron deficiency anemia

 

Thalassemia

 

Question 4Starr weighs 24 pounds, which prescription for FeSo4 dosed at 5mg/kg would be right for her?

 

None, this prescription would be inappropriate at this time

 

FeSO4 drops 75 mg (15 mg elemental FE)/ml; 1.7ml po BID x 30 days

 

FeSO4 elixir 220 mg (44 mg elemental Fe)/5 ml; 1.2ml po BID x 30 days

 

FeSO4 drops 75 mg (15 mg elemental Fe)/ml; 0.6 ml po QD x 30 days

 

Question 5Septic arthritis is most commonly caused by:

 

Group B streptococcus

 

Pseudomonas

 

Staphylococcus aureus

 

Haemophilus influenzae

 

Question 6All of the following are true of the Mentzer index EXCEPT:

 

It differentiates between iron deficiency and thalassemia.

 

It is calculated by MCV divided by RBC.

 

A ratio of less than 13 indicates thalassemia

 

It is used to differentiate between beta thalassemia major and minor.

 

Question 7A mother presents with her 4 year old daughter, Emma, with concern of left arm or shoulder pain. She denies any history of injury or trauma, but noticed Emma seems to be protecting her left arm and won’t extend it. This started after Emma was playing outside with her teenage brother who built an obstacle course and was pulling Emma by her arms over the larger obstacles. On exam, Emma is holding her left arm with her other hand, and resists any movement of her elbow, wrist, or fingers. She seems anxious. There is no erythema, warmth, edema, or signs of injury with tenderness over the radial head. The most likely diagnosis is:

 

Left clavicle fracture

 

Osteomyelitis

 

Salter Harris fracture

 

Nursemaid elbow

 

Question 8Six-year-old Jeana is brought to the clinic by her dad complaining of pain in her legs. Dad states Jeana can’t sleep at night crying due to pain in her thighs. This has been happening off and on for 3 months. Your exam is negative. Jeana is most likely to be suffering from

 

Osteosarcoma

 

Juvenile rheumatoid arthritis

 

Growing pains

 

Slipped femoral capital epiphysis

 

Question 9The primary care pediatric nurse practitioner sees a 12-month-old infant who is being fed goat’s milk and a vegetarian diet. The child is pale and has a beefy-red, sore tongue and oral mucous membranes. Which tests will the nurse practitioner order to evaluate this child’s condition?

 

Hemoglobin electrophoresis

 

RBC folate, iron, and B12 levels

 

Reticulocyte levels

 

Serum lead levels

 

Question 10A 15-year-old female reports fainting at school in class on two occasions. The adolescent’s orthostatic blood pressures are normal. The primary care pediatric nurse practitioner suspects a cardiac cause for these episodes and will order which tests before referring her to a pediatric cardiologist?

 

12-lead electrocardiogram

 

Echocardiogram

 

Tilt table testing

 

Treadmill exercise testing

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